Miley Cyrus cuddled with Charlie the VetDogs service puppy during an appearance on NBC's "Today" show on Sept. 16.
Prince Harry met a medical alert dog as he visited venues ahead of the Invictus Games at ESPN Wide World of Sports in Orlando, Florida, on May 6.
Amanda Seyfried walked her dog, Finn, in New York City on Sept. 14.
Justin Bieber carried a puppy at the airport after a gig in Krakow, Poland, on Nov. 6.
Katy Perry was seen picking up her puppy from a veterinarian's office in Los Angeles on Oct. 14.
Naomi Watts was all smiles while out and about with her pooch in New York City on Oct. 17.
Reese Witherspoon goes hiking along with her dog, daughter Ava Phillippe and son Tennessee Toth in Los Angeles on March 20.
Kaley Cuoco attended an event for "Stand Up for Pitbulls" in Los Angeles on Nov. 8.
Chrissy Teigen was seen out and about with her dog in Los Angeles on Nov. 9.
Hilary Duff cuddled her pet pooch while leaving a gym in West Hollywood, California, on Oct. 9.
Lady Gaga stepped out in New York City with her new puppy in a Louis Vuitton dog carrier on Dec. 1.
Michelle Williams was spotted out and about with daughter Matilda Ledger and their dog in New York City on Oct. 28.
Kelly Osbourne flashed a huge smile while carrying her cute pup in New York City on Aug. 8.
Charlize Theron took her daughter and two dogs to Runyon Canyon in Hollywood on Nov. 13.
Brooke Shields and her dog had lunch in New York City on Sept. 24.
Aussie rapper Iggy Azalea was spotted horseback riding in Calabasas, California, on Oct. 4.
Queen of the dogs Paris Hilton carried one of her pets while leaving sister Nicky Hilton's apartment in New York City on Oct. 20.
Supermodel and supermom Heidi Klum and daughter Leni were spotted taking their dog for a walk in Los Angeles on Oct. 2.
Gavin Rossdale took his dog to a basketball game in Studio City, California, on Dec. 4.
Busy Philipps joined Purina Cat Chow to help deliver a portion of five million meals to Rescue Bank in Los Angeles on Sept. 1.
Martha Stewart and two of her chow chows attended the Third Prfct!: Biennial Picnic and Concert in East Hampton, New York, on Sept. 3.
Kurt Russell and his dog were seen walking around in Los Angeles on Dec. 1.
Jessica Alba cuddled with Charlie — the young Labrador retriever that's being raised on the "Today" show as he trains to be a VetDogs service animal — in New York City on Aug. 25.
Rita Ora gushed over this cute pup while out and about in New York City on Aug. 19.
Her name was Lola! She was a show pup. Alessandra Ambrosio stepped out with her little dog, Lola, in Beverly Hills, California, on July 27.
Nina Dobrev arrived on the red carpet at ASPCA's Los Angeles Benefit on Oct. 22.
"Game of Thrones" star Jacob Anderson posed with a darling dog at the MTV Crashes event in Plymouth, England, on July 28.
Drew Barrymore held a cute pooch as she attended the ASPCA's 19th Annual Bergh Ball in New York City on April 14.
Ali Fedotowsky got her photo snapped with a four-legged friend at the World Dog Awards in Santa Monica, California, on Jan. 9.
Nikki Reed flies out of town with her adorable German Shepherd foster puppy in Los Angeles on Jan. 14.
Amber Tamblyn films "Inside Amy Schumer" while holding a dog in New York City on Feb. 5.
Kendall Jenner grabbed an armful of puppies at a local pet adoption shop in West Hollywood, California, on Jan. 4.
Sophia Bush was all smiles while bumping into a furry friend in New York City's SoHo neighborhood on June 24.
Jonah Hill walked his dog, Carmela, in New York City on June 23.
Maria Menounos threw a Sweet 16 birthday party for her dog, Baby, in Los Angeles on July 10.
Andy Cohen went for a walk with his adorable rescued pooch Wacha in New York City on Jan. 7.
Pippa Middleton took her dog out for a walk in London on July 21.
Jessica Chastain played with a dog after the Chanel Haute Couture Fall/Winter 2016-2017 show during Paris Fashion Week on July 5.
Jennifer Garner went running with her dog in a park in Los Angeles on March 26.
"Entourage" alum Jeremy Piven was spotted holding a little dog in West Hollywood on Dec. 8.
Christy Turlington was spotted walking two big dogs around Central Park in New York City during a photo shoot on March 29.
Hugh Jackman walks his dogs in New York City on March 12.
Gwen Stefani walks her dog at a park in Los Angeles on Feb. 20.
Julianne Hough celebrated the West Coast debut of her new clothing collection with a furry friend at Concept 8366 1/2 in Los Angeles on April 4.
Susan Sarandon was spotted with this pup in New York City on April 27.
Lady Gaga steps out with her dogs, Asia and Koji, in New York City on Feb. 19.
Jesse Tyler Ferguson attended the "Broadway Barks Adoption" event in New York City on July 30.
Chrissy Teigen was photographed carrying her bulldog, Pippa, in New York City on March 6.
Alan Cumming attended a photocall with his dog Lala at the Edinburgh International Book Festival at Charlotte Square Gardens in Scotland on Aug. 27.
Kate Upton attends the Second Annual Grand Slam Adoption Event in Lakeland, Florida, on March 31.
Kate Moss walks her dog, Archie, in the Cotswolds in England on March 5.
Dakota Johnson took her pup Zeppelin for a stroll in New York City on Jan. 10.
Steven Tyler was seen with his adorable dog at Los Angeles International Airport on July 7.
Vanessa Hudgens and her dog visit Alfred Coffee in West Hollywood, California, on April 1.
Olivia Palermo wore a blue off-the-shoulder blouse paired with blue jeans while walking her dog, Mr. Butler, with her mom in Brooklyn on May 28.
Mickey Rourke was all smiles as he held his dog while leaving Da Silvano restaurant in New York City's Greenwich Village on July 21.
Style star Jamie Chung walked her dog in West Hollywood on Oct. 8.
Newlyweds Skylar Astin and Anna Camp took their dog Rocky for a walk in Los Angeles' Los Feliz neighborhood on Oct. 23.
Lisa Vanderpump and Ken Todd attended an event in Los Angeles for their dog charity on Nov. 3.
Patrick Schwarzenegger took his pooch for a walk in Los Angeles on Jan. 9.
George Lopez found a furry friend while attending the World Dog Awards in Santa Monica, California, on Jan. 9.
While out for a run in New York City, comedian Louis CK brought his dog along on Jan. 5.
Famke Janssen took her dog, Licorice, for a walk in New York City's Tribeca neighborhood on June 16.
Gavin Rossdale met daughter Daisy Lowe and her dog for lunch at the trendy Primrose Hill Pub in North London on June 28.
Carrie Fisher, daughter Billie Lourd and a furry friend attended the "Absolutely Fabulous: The Movie" film premiere in London on June 29.
Singer Halsey held an adorable puppy while visiting radio station Q102 in Bala Cynwyd, Pennsylvania, on May 12.
Nicole Murphy visited a nail salon with her pooch in Beverly Hills, California, on June 20.
Kristin Chenoweth carries her dog at LAX Airport in Los Angeles on Feb. 25.
Natasha Lyonne walks her dog in New York City on March 6.
Joe Jonas and his band DNCE performed on the "Today" show in New York City where they cuddled with Charlie the VetDogs service pup on Aug. 26.
Nina Dobrev and Benjamin Walker posed with his dog backstage at the hit musical based on the film "American Psycho" on Broadway at The Schoenfeld Theatre in New York City on April 10.
Kate Upton was seen at LAX International Airport with her dog on April 13.
Geri Halliwell took her dogs to a grooming salon in London on May 25.
Tom Hiddleston and Carrie Fisher posed with her dog at the White House Correspondents Dinner in Washington on April 30.
Karlie Kloss walks her dog in New York City on Feb. 3.
Paris Hilton was seen with her dog in Los Angeles on April 21.
Naomi Watts took her dog for a walk in New York City on June 26, 2016.
Parker Posey attended the Rachel Comey fashion show during New York Fashion Week with her dog Gracie in New York City on Sept. 7.
Jordan Peele and Keegan-Michael Key posed with kittens at "Watch What Happens Live" in New York City in May 2016.
Orlando Bloom walks his dog in Malibu, California, on Feb. 21.
Nikki Reed arrives in Los Angeles on April 5.
"X-Men" star Famke Janssen and her dog, Licorice, walked around Manhattan's SoHo neighborhood on Dec. 2.
Adam Sandler took his puppy for a walk with his family in Los Angeles' Pacific Palisades neighborhood on Oct. 8.
Fashion blogger Olivia Palermo posed with her pup in New York City on Oct. 19.
Jennifer Lawrence carries her dog, Pippi, in New York City on Feb. 19, 2016.
Bailee Madison attended the American Humane Hero Dog Awards in Los Angeles on Sept. 10.
Amanda Seyfried and Thomas Sadoski were spotted out shopping with her dog Finn in Beverly Hills, California, on Oct. 18.
Kelly Osbourne was seen with her Pomeranian while arriving at LAX Airport in Los Angeles on Dec. 5.
Lewis Hamilton walked his dogs, Roscoe and Coco, during previews ahead of the Formula One Grand Prix in Belgium on Aug. 25.
"Scream Queens" star Keke Palmer posed with her dog in the cold weather of New York City on Dec. 15.
Emily Ratajkowski walks her pug in Los Angeles on Feb. 23.
Jeremy Irons was spotted walking his dog outside his hotel in New York City on Dec. 13.
Steven Tyler totes his pup at LAX Airport in Los Angeles on March 2.
Gavin Rossdale and son Apollo play with their dog in Los Angeles on March 5.
Joanna Krupa struck a pose beside a cute canine at the World Dog Awards in Santa Monica, California, on Jan. 9.
Zachary Quinto and boyfriend Miles McMillan walked their dogs in New York City on Sept. 14.
Nicollette Sheridan took a stroll with her pup in Beverly Hills, California, on Jan. 7.
Iconic director Steven Spielberg was spotted walking his four-legged friend while out in New York City on Oct. 18.
Andy Cohen and his dog, Wacha, arrive at the "Watch What Happens Live" studios in New York City on Feb. 29.
Former President Bill Clinton was all smiles when walking his dogs in Madison Square Park in New York City on July 9.
Ashley Tisdale went out for coffee in Los Angeles' Toluca Lake neighborhood with her mom and dog on Feb. 7.
Lisa Vanderpump toted her beloved pup Giggy on the red carpet while attending the Mark Zunino Atelier Opening in Beverly Hills on Jan. 8.
Mickey Rourke was spotted with his dog at Cafe Roma in Beverly Hills on Nov. 12.
Milla Jovovich and her family went for a walk with their dogs in Los Angeles on Nov. 12.
Sofia Richie took her two small dogs out for a shopping trip at Fred Segal in West Hollywood on Nov. 1.
Alison Sweeney posed with a cute pooch at the World Dog Awards in Santa Monica, California, on Jan. 9.
Supermodel Helena Christensen was seen in New York City with her dog on Nov. 10.
MLB star Justin Verlander was spotted with his dog as he caught a flight out of Los Angeles on Nov. 11.
Cara Delevingne at with her dog in her lap during Chanel's presentation at Paris Fashion Week on Jan. 26.
Robbie Williams carried his pooch outside the ITV studios in London on Nov. 14.
Famke Janssen walked her dog, Licorice, in New York City on March 5.
Josh Groban and his dog, Sweeney, were spotted at lunch in West Hollywood on July 9.
Eric McCormack walked his dogs in Los Angeles on Feb. 14.
"Star Trek" actress Alice Eve was spotted walking her dog in Beverly Hills on Nov. 16.