Parties! The style, stars and scoop from Hollywood's hottest events

Nicole Richie proved she's a betting woman when she hit the 2008 Breeders' Cup Winners Circle gala with boyfriend Joel Madden (not pictured) at the recently re-opened Hollywood Palladium in L.A. Allison Janney, Brooke Burns and Maroon 5's Adam Levine also showed up for the kickoff of the annual horse racing weekend.