Making it big: The Mirror Mirror star's wife shows off her hat at the 139th Kentucky Derby at Churchill Downs in Louisville, Kentucky.
The model and former N'Sync member hang out at the GQ Derby Style event presented by Stella Artois.
The former Hills star shows off her sophisticated side in her own Paper Crown line.
The former N'Sync singer shows off his dapper duds at the Kentucky Derby.
The superstar country singer hits the carpet in a lace-embellished, strapless dress at the Kentucky Derby.
The Revenge star is white hot at the Maxim & Maker's 46 Fillies and Stallions party.
The Dallas star celebrates at the Maxim & Maker's 46 Fillies and Stallions party.
Miss America 2013 shows off her figure in a sleek, black dress at the Kentucky Derby.
The Don't trust the B---- in Apartment 23 star looks stunning in a floppy, wide-brim hat inspired by Grey Goose and floral dress at the Kentucky Derby.
The Bride of Chucky star gets into the Derby's spirit of crazy-cool hats with one of the crazy-coolest.
The actress looks ravishing in red on the red carpet of the Kentucky Derby.
The former NBA superstar meets up with the Green Bay Packers quarterback at the Maxim & Maker's 46 Fillies and Stallions party.
The model, and judge of The Face, strikes a pose like there's nothing to it.
The doting dad and Anna Nicole's daughter play Derby dress-up.
The Two and a Half Men star looks hot in a festive bow tie and sunglasses.
The country cutie keeps in classy in a polka-dot dress and red high heels.
The Twilight star and the Australian model pose for the cameras in their Derby duds.
The Once Upon a Time beauty wears a bright, colorful ensemble for the occasion.
The Will and Grace actress keeps it neutral in a gray frock and matching hat.
The R&B diva opts for an all-red outfit on the red carpet.
The television personality pairs her blue dress with a unique hat.
The "Time After Time" singer dons a rather large hat for the Kentucky Derby.
MORE PHOTOS: Stars from Kentucky