POPSUGAR Celebrity Leighton Meester Michelle Trachtenberg with Chace Crawford and Leighton Meester on the NYC Set of Gossip Girl Three's a Crowd by Celebrity 3/10/09 0 Shares Like us on Facebook Michelle Trachtenberg was back on the set of Gossip Girl Monday with Chace Crawford and Leighton Meester. Source: Splash News Online Read More Leighton MeesterChace CrawfordHotMichelle Trachtenberg Leighton Meester Leighton Meester Shows Off Her Baby Bump! Leighton Meester's Expecting! Plus 8 More Celebrities Who Are Pregnant Right Now The Very Best Celebrity Engagement Rings 40+ Gossip Girl Hair Moments That Made You Jealous Chace Crawford Spotted: Ed Westwick With a Dapper New Hairstyle There Was a Very Good-Looking Gossip Girl Reunion Over the Weekend 23 Chace Crawford Pictures So Perfect He Might Actually Be a Wax Figure Chace Crawford Is Single Again Michelle Trachtenberg Sofia Richie Takes Over New York Fashion Week! The Outfits at the Golden Globes Preparties Are Definitely Award Worthy Eye-Brightening Tricks For All Skin Tones That's a Wrap! Shop Exact Pieces From Gossip Girl's Sixth and Final Season Get the scoop with our daily newsletter Young Hollywood A-Listers TV Movies Sign up with By signing up, I agree to the Terms and to receive emails from POPSUGAR.