By Leah Ornstein

Breaking Celebrity News Style & Beauty Editor

Still dreaming about wacky hats after the Royal Wedding?

The Kentucky Derby starts on Friday, so be prepared for yet another round of fabulous fascinators!  Breaking Celebrity News has photos of Hollywood’s maddest hatters at the famous races over the years, in this special photo feature.

From Hugh’s hottest Girls Next Door to then-Newlyweds Jessica Simpson and Nick Lachey, you never know who you are going to find horsing around at the Derby!