Wonderwall.com rounded up the biggest celebrity hair transformations of 2019, starting with this actress's major cut… "Channeling my inner #Kirby #Scream4 Thanks to my boys @anthonyleonard ❤️," Hayden Panettiere captioned this selfie of her new super-short haircut on Dec. 10, referencing her character in 2011's "Scream 4," who also had a closely cropped look. Keep reading for more celebs who've made major hair changes this year, from cuts to colors…
RELATED: Stars without makeup in 2019
Pink shaved her head in early December and captioned the pic "Letting go." (Husband Carey hart gushed in the comments, "Love it!!!!!!!!!") Three days later on Dec. 8, the singer showed off her ultra-cropped look while out and about in New York City.
After slowly trimming her long hair shorter and shorter all year long, model Kaia Gerber debuted her most cropped cut yet in early December, captioning this Instagram Story image, "Can't seem to keep my hair on my head."
Zoe Kravitz, who'd been wearing her hair in long dreadlocks, debuted a new pixie cut on Instagram on Nov. 26.
Justin Bieber showed off his new pink hair in Beverly Hills on Nov. 24.
Music star Billie EIlish showed off her new short-in-front, long-in-back look at the LACMA Art + Film Gala in Los Angeles on Nov. 2, and fans seemed to love it. But days later, Billie told TMZ that the pseudo-mullet was "not on purpose" and that she plans to change it up as soon as she can. "You know what happened? Somebody dyed my hair and burnt half of it off and now it looks like a mullet," she explained. "I'm growing that s— out!"
"Hello 🌏. It's a BEAUTIFUL day," Evangeline Lilly captioned this Nov. 2 Instagram selfie, which the "Ant-Man and the Wasp" actress posted after she shaved her head at home and documented the major haircut on social media.
"To All the Boys I've Loved Before" heartthrob Noah Centineo left fans divided after he shaved off his wavy brown hair and debuted a closely cropped hairstyle on Instagram in October 2019.
"New Rules" chart-topper Dua Lipa started sporting blunt bangs in late September. She looked practically unrecognizable while rocking her new look at the launch party for Libre, her new Yves Saint Laurent fragrance, in Madrid on Sept. 30. Keep reading to see yet another dramatic new look the pop star debuted just days later…
And her transformations just keep coming! Natural brunette Dua Lipa stepped out in New York City on Oct. 2 with a new rose gold 'do.
After a few different hair changes this year, Charlize Theron debuted a new cropped bowl cut look in the fall. We got our first clear look at it while she was out promoting "The Addams Family" on Oct. 6. Somehow, Charlize has managed to make a bowl cut look chic.
Back in April, Adam Levine left fans divided when he debuted a new mohawk hairstyle. In late September, the former "The Voice" coach took things up a notch, revealing bleached-blonde hair braided into cornrows atop his head. He shared this selfie on his Instagram Story, dubbing his new 'do the "corn hawk." Once again, he left fans disappointed.
Bye-bye, pink, hellow, brown! Just days after hitting fashion shows with longer pink hair, "Game of Thrones" actress Maisie Williams revealed new brunette locks cut into a chic banged bob at the Emmy Awards on Sept. 22.
"The View" host Whoopi Goldberg debuted milky-white dreadlocks on her ABC talk show on Sept. 18 and explained that the change is in preparation for her role as Mother Abagail on Stephen King's upcoming limited series "The Stand."
Channeling Eleven! "Stranger Things" star Millie Bobby Brown ditched her brunette locks and revealed a new blonde 'do on Sept. 28.
Katherine Schwarzenegger swapped her usual long hair for a short lob in September. One thing she kept? Her beachy waves.
"To All the Boys I've Loved Before" franchise star Noah Centineo, who has naturally dark hair, left fans puzzled after he revealed a new bleached-blonde beard on his Instagram Story on Sept. 14. Some speculated that the unusual change of facial hair color could be for his role as He-Man in the upcoming "Masters of the Universe" movie.
Model Kendall Jenner debuted new blonde hair on the runway during London Fashion Week on Sept. 16.
Amanda Bynes re-joined Instagram with this selfie debuting her new pink hair and septum piercing on Sept. 10.
Selma Blair started to lose her hair in 2019 due to the MS treatments she's been undergoing, so she decided to take matters into her own hands and shave it all off. She's proudly shared updates with fans on Instagram as her journey continues.
Natural brunette Mila Kunis debuted a brand new look — blonde tresses dipped in blue — during a Disneyland date with hubby Ashton Kutcher on Sept. 29. We're dying for a better angle!
Fans of "Stranger Things" were quick to notice how different series star Joe Keery looked after trading in his usual voluminous, wavy hairstyle for a straight, combed-down bowl-cut look when he stepped out for a Chanel dinner in Los Angeles on Sept. 12.
Music star The Weeknd debuted a longer natural-hair look (and a beardless face!) at the "Uncut Gems"premiere during the Toronto International Film Festival on Sept. 9.
Britney Spears went brunette again this year. "Same faces, same dress, new hair !!!!! 👠 Yes, my sister inspired me to go dark !!!!!!!" the pop star captioned this selfie — one in a series of snapshots — showing off her new brunette hair color on Instagram in early September.
Businesswoman and reality TV star-turned-presidential adviser Ivanka Trump made headlines when she debuted a new short bob haircut on a state visit to Bogota, Colombia, on Sept. 3.
Supermodel Bella Hadid lightened her dark brown locks in July. She's seen here sporting her new honey-blonde hair color at the MTV Video Music Awards on Aug. 26.
After decades of wearing dreadlocks, Counting Crows frontman Adam Duritz decided to make a huge change and got rid of all the hair on his head! "I flew to London and shaved my head! Anarchy In The UK indeed," the musician wrote on Instagram on Aug. 14 alongside a pic of himself minus his trademark dreads.
Pop star Halsey debuted new rainbow-colored bangs on Instagram on July 31.
Zendaya rocked a new red shade starting in June 2019, debuting her new look at a "Spider-Man: Far From Home" photocall in London (the same month her hit HBO show "Euphoria" debuted!).
In July, natural brunette model Lily Aldridge briefly sported a short blonde 'do — she branded it her "dream haircut" in an Instagram selfie — only to later reveal that the look was temporary, courtesy of celebrity wig master and hair stylist Panos Papandrianos.
Kesha, is that you? The pop star arrived at a New York City event in June looking unrecognizable with dark brown hair in lieu of her usual blonde tresses.
Though her entire look was eye-catching, Bella Hadid's new super short hairstyle made headlines on the Met Gala carpet in May. The model sported this sleek pixie that reminded us of her mom Yolanda Hadid's signature hairstyle.
Maisie Williams rocked a few hair hues this year — but this purple one was by far the most unique! The "Game of Thrones" star sported this lavender shade at the show's final season premiere in New York City in April.
Ciara arrived at the Ace Awards in New York City with a brand new 'do — a pixie cut! The star, who'd been known for her long wavy locks, debuted her super short style on the red carpet in June.
Minka Kelly had a self-proclaimed "accident" with hair color in June and ran straight to her trusted stylist Tracey Cunningham to fix it. "You really know the difference between a colorist and a true artist when they're able to take you from just about solid black to this," Minka wrote in her Instagram caption, showing off her new lighter hue.
After spending some time on the darker side, Emma Roberts returned to her usual blonde locks in April 2019.
Kim Kardashian has never been afraid to change up her look, so this short bob was no surprise. She showed off the mature hairstyle first in late May and then again in June while attending a press conference in Washington, DC.
Michelle Obama showed off a new ombre hair shade with lighter brown ends this July, showing off the new hue with a curly 'do.
The world is used to Donald Trump's signature hairstyle, but the President of the United State showed off a different 'do at an event in Virginia in June — this slicked back look.
Naomi Watts has been sporting shorter hair for some time, but in April she debuted her blunt and extra short chin-length bob.
Michelle Monaghan's new bangs and layered cut made its red carpet debut in June at the CMT Music Awards.
Pretty in pink! Regina Hall added some pink to her dark hair to match her Dapper Dan and Gucci collaboration gown at the Met Gala in May.
January Jones jumped on the bob trend with this sleek new hairstyle. The star first showed off her much shorter cut in June.
Ready for summer! Sutton Foster stepped out in New York City this June with shorter, shoulder-length tresses.
Bebe Rexha ditched her platinum blonde locks for pale pink in May. She attended a few events sporting this edgy 'do made up of different hues of pink.
Just after announcing her second pregnancy, Anne Hathaway stepped out sporting a shorter, shaggier haircut.
While stopping by "Late Night with Seth Meyers" in June, Linda Cardellini showed off her brand new bangs.
Lucy Boynton arrived at the Met Gala in May sporting this pretty icy blue shade. The hue was a change from her usual blonde tresses, and matched her ethereally-inspired Prada gown perfectly.
"The Bachelor" alum Colton Underwood changed things up when he dyed his hair platinum blonde, a look he debuted formally at Clayton Kershaw's Seventh Annual Ping Pong 4 Purpose charity event at Dodger Stadium in Los Angeles on Aug. 8. Since then, though, he's changed his look again slightly…
And voila! A month later, Colton Underwood had ditched his platinum blonde look, though he wasn't back to his natural color either. Instead, he seems to be rocking a golden shade that gave him a California cool vibe.
Things are looking up for Abby Lee Miller in 2019! The reality star showed off her first haircut after losing her hair to chemotherapy in June, about six months after getting her cancer free diagnosis.
Dame Helen Mirren debuted a new pink hair color when she hit the red carpet at the premiere of "The Best Years of a Life" during the 72nd Annual Cannes Film Festival in France on May 18.
New fringe! Jessica Chastain revealed new bangs and a sleek bob during a press conference to promote "X-Men: Dark Phoenix" in Mexico City on May 15.
For the "John Wick: Chapter 3 – Parabellum" premiere in Hollywood on May 15, Halle Berry wore her short hair in a topknot, revealing a cool wave design shaved into the undercut on the back of her head.
After more than 20 years of sporting a short, dark bob with soft highlights, Judge Judy Sheindlin surprised fans when she changed up her trademark hairdo and debuted a new look — longer locks pulled back into a ponytail secured with a barrette — on her eponymous TV show in April. She also wore her hair in the new pretty pony look at the Daytime Emmy Awards, where she received a lifetime achievement award on May 5.
Fans have long been obsessed with Harry Styles and his hair decisions. It was reported on Sept. 1 that he had cropped his hair quite short and we got the proof on Twitter. A month later on Oct. 4, he stepped out with this slightly grown out 'do in London — a vast improvement.
"Modern Family" actress Ariel Winter hit the red carpet with a brand-new hair color — a bold copper hue — at Entertainment Weekly and People magazine's Upfronts party in New York City on May 13. She debuted her new shade, a bold departure from her dark brown locks, on Instagram earlier in the month, captioning a pic "part of yourrrrrr worrrrrld," a reference to Disney's "The Little Mermaid" which, of course, features a red-headed princess named Ariel.
After wrapping the final season of "The Big Bang Theory" in the spring, Mayim Bialik decided to cut her long hair into a layered bob. "A proper and loving shout out to @jenniferguerrerohair who chopped off my old gross hair and gave me a new identity," Mayim captioned a selfie revealing her new look on Instagram in early May. "Jen has styled @themelissarauch's hair for many years on @bigbangtheory_cbs and when I asked Melissa if i could borrow Jen for this make over she said there's no one she would trust with me more than Jen. Jen, thank you for inspiring me with layers and layers of the new me post-Amy!!! And thank you for holding my hand through this transition ❤️ 💇🍾."
After years of being more blonde than brunette, Beyonce debuted a much darker hair color with just a few golden highlights when she and JAY-Z sat courtside during Game 6 of the Western Conference Semifinals of the 2019 NBA Playoffs in Houston on May 10.
Who dis? Katy Perry revealed a much different look on Instagram in April. It's unclear if the pop star — who'd been sporting a super-short platinum blonde hairstyle for ages — achieved these new long, warmer blonde locks via a wig or extensions, but either way, fans on social media overwhelmingly approved of the transformation, which came courtesy of hairstylist Chris Appleton.
Months after revealing a new dark 'do, natural blonde Charlize Theron added bangs — albeit temporary ones — when she hit the red carpet at the premiere of her comedy "Long Shot" in New York City on April 30.
Miley Cyrus got bangs in late March. Her new fringe made its red carpet debut at the "Avengers: Endgame" premiere at the Los Angeles Convention Center on April 22.
When "The Voice" coach Adam Levine debuted a new mohawk on the music competition show in April, fans were divided.
Singer Meghan Trainor showed off a new pink hair color at the premiere of "The Hustle" at the Pacific Cinerama Dome in Hollywood on May 8.
Bye-bye, shoulder-length hair! Rosie O'Donnell debuted a new closely cropped cut at the opening night performance of Broadway's "Oklahoma" at Circle in the Square Theatre in New York City on April 7.
Rachel Brosnahan switched up her color in March. The "Marvelous Mrs. Maisel" star, who typically sports dark brown hair, showed off newly dyed blonde locks at the premiere of "What The Constitution Means To Me" on March 31.
Channing Tatum took to his Instagram Story on March 19 to debut his new 'do: a platinum blonde buzzcut. "Bad idea?" he asked, inviting his followers to share their thoughts on his updated look. (His fans mostly voted yes, by the way!)
First blue hair, then bangs! "Crazy Ex-Girlfriend" star Rachel Bloom took to Instagram in early April to reveal her latest hair transformation — a significant cut — as her show celebrated its final episode. "Happy finale, I got bangs #crazyexgirlfriend," she captioned this selfie.
Rachel Bloom showed off a fun pop of color at the 2019 Writers Guild Awards on Feb. 17. The "Crazy Ex-Girlfriend" star added navy blue highlights to her dark brown hair.
In January, country music star Tanya Tucker revealed on social media that she'd dyed her blonde locks pink. Her rep told Taste of Country that the star went pink to show her support for a friend who's fighting breast cancer. Tanya hit the red carpet at the 54th Annual Academy of Country Music Awards on April 7 still sporting her cotton candy hue.
This athlete also went pink! A few weeks after revealing on social media that he'd dyed his hair pink, freestyle skier and Olympic medalist Gus Kenworthy debuted his new pastel hue on the red carpet at the Point Honors Gala in New York City on April 8.
Fans were in for a quite a surprise when naturally blonde Charlize Theron walked the red carpet at the 2019 Academy Awards in February sporting a new chestnut brown bob.
Jada Pinkett Smith debuted a new golden blonde hue on Instagram in March. The "Red Table Talk" host posted this selfie with the caption, "When that Sandy blonde drip you use to rock in the 90's still goes hard✨."
Kim Zolciak-Biermann looked unrecognizable while appearing on "Watch What Happens Live With Andy Cohen" in March. The reality star traded her signature blonde locks for long, dark brown tresses.
David Beckham and Victoria Beckham's daughter, Harper Beckham, was twinning with Vogue Editor-in-Chief Anna Wintour during London Fashion Week in February. The adorable tot's previously long locks had been cut into a blunt bob with bangs before mom's fashion show.
Hairstylist Serge Normant took to Instagram on March 14 to show off Julia Roberts' new 'do. "@juliaroberts ❤️ new ✂️#sergenormant," he captioned the photo of her textured lob.
After years as a blonde, Nicole Kidman debuted a new "throwback" look — long auburn curls that looked remarkably similar to the 'do she sported early in her career — on the New York City set of the HBO miniseries "The Undoing" on March 18.
Brunette model Bella Hadid debuted much lighter honey-blonde tresses while posing with fashion photographer Mert Alas on Instagram on March 26.
Sarah Hyland showed off a new choppy shag-inspired haircut while out and about in Los Angeles on March 16.
Pretty in pink! Maisie Williams attended the Kenzo show during Paris Fashion Week on Jan. 20 with a new pastel hue.
John Travolta made headlines after he debuted a surprising new look for 2019 — a sleek bald head. The star (seen here on Jan. 19) — who's long worn wigs and weaves — later spoke to People magazine, admitting, "[It] feels great." As for whether he'll stay bald, he added, "Listen, my new look came on a whim. It was a New Year's Eve idea. Because everyone liked it so much, I decided to keep it for a while. So we'll see."
Just as the eighth and finale season of "Game of Thrones" debuted in April, Emilia Clarke showed off a sleek new bob after ditching her usual longer hair.
Ian Somerhalder ditched his signature cut for a pseudo-mohawk in late March. The "Vampire Diaries" alum posted this selfie, writing "2019… It was supposed to be the year of the Faux hawk(ish)."
Shay Mitchell debuted her new platinum blonde 'do — which she achieved with the help of a wig — at the iHeart Radio Music Awards in Los Angeles on March 14. ("Freaking out my grandma every time I wear a different wig to an event, will never get old," she joked on Instagram.)
Teresa Giudice went for rose gold highlights while attending the Cosmopolitan New York Fashion Week #Eye Candy event afterparty in February. The "The Real Housewives of New Jersey" star explained her new 'do on Instagram, writing, "I needed to change up my Blonde hair, but I didn't want to go too dark, so this is where we ended up 😍 #RoseGold by @giana+martino 🌹💝✨."
Pretty in pink! Taylor Swift added some pink streaks to her hair in 2019. The superstar showed off the fun pop of color at the iHeartRadio Music Awards in Los Angeles on March 14.
Kate Hudson — who started the year with a bob after shaving her head in mid-2017 — took to Instagram on March 12 to show off her new longer 'do. "I got hair!" she captioned a mirror selfie. It's unclear whether she achieved her new look with a wig or extensions, but either way, we dig it!
Katherine Heigl showed off a brand new brunette 'do for her brand new role in "Firefly Lane" with this selfie, which she captioned, "If you haven't caught my stories this will be a shock for you…"
Kelly Osbourne has long been a fan of lavender tresses, but we got to see a new dark purple 'do at the 2019 Emmy Awards.
She's blue! Iggy Azalea swapped her blonde hair for a bright blue hue — which we got a peek at when the rapper hit a Las Vegas party on July 26.
Mandy Moore, who started the year with shoulder-length locks, sought the expertise of Garnier Consulting Hairstylist Ashley Streicher when it came to her latest hair makeover on March 5. The "This Is Us" star used Garnier's Shade Selector Tool and ultimately chose Garnier Nutrisse Shade 53 for her new hue. Ashley then chopped the actress's locks into a textured bob and used various Garnier products to complete the style.
Cate Blanchett revealed a new dark brown hair color on the red carpet at the BAFTAs on Feb. 10. According to an Instagram post from Cate's makeup artist, Morag Ross, the new brunette shade is "for her character in the play ['When We Have Sufficiently Tortured Each Other'] at the National Theatre."
On Feb. 11, Kourtney Kardashian revealed daughter Penelope Disick's new much shorter hair in an Instagram post. "First ever hair cut in all of her enchanting six years ✂️," Kourtney captioned a photo slideshow featuring her little girl.
Platinum blonde Zac Efron? The actor showed off his new icy locks at the premiere of "Extremely Wicked, Shockingly Evil and Vile" at the Sundance Film Festival in Park City, Utah, on Jan. 26.
Singer Billie Eilish, who has sported various shades of hair, most recently went from an icy blue hue to black. She debuted the new hair color on the iHeartRadio Music Awards red carpet on March 14.
Katherine Langford gave Princess Ariel a run for her money when she debuted gorgeous ginger locks on Instagram in January. The actress reportedly dyed her brown hair red for an upcoming movie role.
Kendall Jenner experimented with bangs in early February, asking fans, "yes, no, maybe so?" when she posted this fringed selfie on Instagram. The hair change was temporary: She stepped out days later minus the bangs.
Nicole Scherzinger debuted a sleek new 'do with stylish bangs at the FOX TCA Summer Press Tour party in Los Angeles on Aug. 7.
Ashley Benson swapped her typical long, messy waves for a sophisticated bob in September.
Childish Gambino aka Donald Glover (seen here with his brother, Stephen Glover) revealed a new bleached-blonde beard at a pre-Grammys/Oscars party for nominated Swedish composer-producer Ludwig Göransson in Los Angeles on Feb. 7.
Emma Stone is experimenting with a new hair color in 2019! The previously redheaded star attended the Producers Guild Awards on Jan. 19 with a new shade — dark brown.
Karlie Kloss stepped out with a no-fuss yet fashionable bob in New York City on July 23.
Meagan Good debuted a new golden blonde pixie cut at the 2019 Academy Awards.
Irina Shayk rocked a much shorter 'do at the 2019 Golden Globes, which she attended with boyfriend Bradley Cooper on Jan. 6. The stunning model's usually long, dark brown tresses were chopped into a lob that fell a little below her chin.
Lady Gaga matched her hair to her periwinkle gown at the 2019 Golden Globes on Jan. 6 and showed off her new hair color in an updo. But it wouldn't be the only color she'd debut in January…
From periwinkle to platinum! Lady Gaga arrived at the Critics' Choice Awards on Jan. 13 with an entirely new hair color — platinum blonde.
"Hunger Games" actress Jena Malone debuted a new fresh look at the 2019 Vanity Fair Oscar Party in February: a blonde pixie cut. Chic!
Recognize this famous face? Normally brunette Megan Fox showed off shorter and blonder hair on the set of "The Battle of Jangsari" in Chuncheon, South Korea, on Jan. 10.
Brooklyn Decker took to Instagram in August to show off her gorgeous long, full tresses — thanks to brand-new extensions!
New era, new hair? Kylie Jenner's ex-bestie, Jordyn Woods, showed off long platinum blonde locks while leaving her hotel in London in March.
Madonna, is that you? The star shared a photo on Instagram in January 2019 revealing a brand new curly, short and dark 'do that seemingly comes courtesy of a wig.
Rowan Blanchard arrived at the HFPA's Golden Globe Awards screening and afterparty in Beverly Hills on Jan. 6 with dramatically shorter hair — a pixie cut!
Is it gray? Blue? Silver? Ruby Rose showed off a new super-pretty — though hard to pin down! — hair color at the Crown IMG Tennis party in Melbourne, Australia, on Jan. 13.
Jaime King debuted new platinum tresses on Instagram in January accompanied by a lengthy caption explaining the reason behind the change. "LIBERATED ✨ 9 months of waiting for this moment. Thank you for the Light that lifted layers of grief, the past, the stories, the loss of my best friend Elizabeth Kemp, the depths and beauty of my characters and all that they endured. The radical shift of what we have all have in our own ways seen – the abuse of power and the choice to own and claim our power and purpose for a higher good.I leave you with my revelation – embrace the petty tyrants (I will) I claim my value here and now. May we use it all for uplifting, learning and growth. This is more than a look for me this is the process letting go… New Year and NEW CHEER! Brand new color for my new ✂️ Thank you always @traceycunningham1 🌹@brantmayfield ✂️ #babylights #newlook #newyear," the star wrote alongside some selfies giving fans a few views of her new hair shade.
Naomi Campbell traded in her long, straight black hair for a curly, highlighted 'fro in January. The supermodel rocked the blonde-highlighted hairdo at the Louis Vuitton show during Paris Fashion Week.
She's gone brunette! The usually blonde Peyton List attended the LA Art Show opening night gala in Los Angeles on Jan. 23 sporting much darker hair.
Jason Sudeikis proved that he is the best fiancé ever when he let partner Olivia Wilde trim down his shaggy brown locks on national television in March. The adorable couple appeared on "The Ellen DeGeneres Show" where Ellen and Olivia gave Jason an impromptu haircut.
Usher showed off a new braided 'do while attending the Roc Nation Grammy brunch on February 9. The R&B singer rocked cornrow dutch braids with a fade and designs on the side.
Kim Kardashian West channeled her inner mermaid on Instagram in March. The KKW Beauty creator rocked long, wavy turquoise blue hair.
Heidi Klum debuted new bangs at the 2019 Vanity Fair Oscar Party in February.
Tyga showed off a fresh press-and-curl on Instagram in March. The rapper straightened his long locks, posting this selfie with the caption, "Player s— only."
Khloe Kardashian started the New Year off with a new haircut! The reality TV star chopped eight inches off her long platinum blonde locks, resulting in a chic lob.
One year after shaving her hair for a role, Joey King showed off a killer buzzcut at the 2019 Nickelodeon Kids' Choice Awards in Los Angeles on March 23.
After being blonde for ages, Broadway and "Widows" actress Cynthia Erivo briefly sported blue then pink hair in early 2019 before rocking long purple locks in February, including at the BAFTAs in London on Feb. 10.
Colton Underwood doesn't care what anybody has to say about his new boybander-esque hairstyle! The star of "The Bachelor" posted this selfie on Instagram in March, writing "Just left part 1 of the finale. I love you all so much. Say what u want about the hair. I like it."
Kanye West showed off rainbow-colored hair while planting a kiss on his wife, Kim Kardashian West, outside Nobu Malibu on Feb. 27.
Priyanka Chopra added honey-blonde highlights to her brunette locks early in 2019. The new Mrs. Nick Jonas showed off her hairstyle at the Learning Lab Ventures 2019 Gala in January.