PHOTO GALLERY: Gossip Girl Goes Roaring Twenties

By: Betsy Waldman / September 3, 2009

Looks like it’s party time! Woo-hoo!

The cast of Gossip Girl was spotted on the NYC set yesterday decked out in full 1920’s costumes. 

Check out Blake Lively, Ed Westwick, Chace Crawford, Penn Badgley, Hilary Duff, and Leighton Meester in our roaring 20’s gallery. How HOT do they all look???