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

At the L.A. premiere of What Happens in Vegas, Eva Longoria Parker (in Monique Lhuillier) supported pal Lake Bell—the two met during the filming of Over Her Dead Body and Bell was among the guests at Longoria's 2007 wedding to Tony Parker—on her big night. The pretty pair also hit the Vegas after-party at the Whiskey Blue inside the W Hotel.

—With reporting by Bronwyn Barnes and Andrea Simpson