Actress Jenny McCarthy arrives at Churchill Downs before the running of the 133rd Kentucky Derby in Louisville May 4, 2011 421 × 309 It’s All About The Hats At the Kentucky Derby Actress Jenny McCarthy arrives before the running of the 133rd Kentucky Derby at Churchill Downs in Louisville, Kentucky, May 5, 2007. REUTERS/Wayne Kraus (UNITED STATES) HORSE-RACING/DERBY