The Kentucky Derby is coming up this weekend, and as every true fan knows, the biggest event in horse racing isn't about horse racing at all. It's about hats. Big hats. Floppy, festooned, totally ridiculous hats. In honor of race day, let's take a look at celebrities (like Ms. Paris Hilton) who also favor fashion-forward headgear.
Shortly after scientists discovered its seizure-inducing properties, Lady GaGa's zebra swirl hat was discontinued.
Go ahead, tell Mickey Rourke that the dress cowboy hat is so 2007. We dare you.
If this whole singing thing doesn't work out, Rihanna might consider a career as a hotel bellhop.
According to an old Hollywood legend, if you take off Michael Jackson's hat his nose falls off. No one has ever tried because, well, that would be both rude and really, really gross.
Katie Holmes' 1920s bucket hat allows her to glare at paparazzi and communicate directly with Xenu.
Heidi Montag totally loved the scene in "Pretty Woman" when Julia Roberts went to the racetrack. Now if only she could transform Spencer into Richard Gere.
When accompanying Adrian Grenier to the Derby, take a tip from Isabel Lucas. Wear a kaleidoscope, then try to distract gawkers with a relatively demure black hat.
When Aretha Franklin sang at Barack Obama's inauguration, she ushered in a bold new era in which every American can dream of sporting ostentatious headgear.
Why does Robert Pattinson wear a tight little knit cap? To keep all those "Twilight"-loving babes from licking his ears.
Maggie Gyllenhaal met up with Jake Gyllenhaal and Peter Sarsgaard, but didn't receive the memo that they'd be wearing hats inspired by "Newsies" and "No Country For Old Men." How embarrassing for her.
Eva Longoria Parker continues her plot to become every man's dream girl by channeling her inner Sporty Spice at the Padres Stand for Hope charity event.
At the world premiere of the "Sex and the City" movie, Sarah Jessica Parker also premiered the latest fashion craze: Chia Hat.
Madonna dashed out the door to perform on her "Sticky & Sweet" tour, remembered her sparkly show-choir hat, forgot pants.
In her rainbow dress and little bowler hat, Lindsay Lohan looks ready to audition for either "Chicago" or "Joseph and the Amazing Technicolor Dreamcoat."
When Kim Kardashian wants to draw attention away from her famous booty, she dons an oversize sombrero.
Flavor Flav should always cap off his look with Viking horns. They balance out those enormous clocks so nicely, don't you think?
Katy Perry's card headband makes her a magnet for magicians and compulsive gamblers. Good thing there are none of those in Las Vegas.
Angelina Jolie dons a fur hat while filming "Salt," then considers how cute it would be to add Russian children to her entourage.
Gerard Butler thought his hat was pretty cool, then he checked out the headwear on the lady next to him. Next time you'll nail it, Gerard. Next time.