You Know You Wanna Be a Gossip Girl!

The stars of hit tv series Gossip Girl all partied together last night to celebrate the show's costume designer Eric Daman book launch! Stars like Blake Lively, Jessica Szohr and Leighton Meester were all dressed to kill and having a blast! The book, called "You Know You Want It" shows all Eric's inspiration behind his styling and is available in stores right now, so you can see exactly how to be a Gossip Girl, even New York fashionista Olivia Palermo was at the party to get some tips, so it must be one amazing book!