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

Blake Lively, Leighton Meester and Taylor Momsen joined the rest of the cast of Gossip Girl to dish the dirt in front of a sold-out crowd at the 25th Annual William S. Paley Television festival in Hollywood. The group hinted at what to expect when the show returns next month, including more bad girl behavior from Lively's character, Serena.