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

Kate Hudson, Victoria Beckham and Rachel Bilson were among the famous fashion-lovers who provided inspiration to the world's top designer's at the 2009 Costume Institute gala benefit, held at New York City's Metropolitan Museum of Art. After stopping for a few quick photos, Justin Timberlake left girlfriend Jessica Biel to pose solo while he dashed inside to fulfill his duties as one of the evening's co-hosts. "It Versace!" announced Biel as she carefully made her way up the Met's steep staircase in her crimson gown.

—Bronwyn Barnes