Kentucky Derby 2012: Must-See Celebrity Hats

Hollywood headed to the racetrack this weekend for the 138th annual Kentucky Derby, and they brought their biggest and best hats with them! Once Upon a Time's Ginnifer Goodwin placed her bets in a wide-brimmed coral topper, while Mary J. Blige cheered on the jockeys wearing a red, rose-adorned fedora. See more celebrities who watched I'll Have Another take first place in festive hats in the gallery.

MORE:• The Most Outrageous Celebrity Hats• Vineyard Vines' Derby-Inspired Collection• Betsey Johnson's Charitable Barbie Hat