Gossip Girl celebrated having completed 100 episodes with a lavish party in the Big Apple Saturday night.
Blake Lively, Leighton Meester and Michelle Trachtenberg were all there in their finest fashions.
PHOTOS: Gossip Girl Celebrates 100 Episodes
Chace Crawford, Penn Badgley and Ed Westwick also brought their hunkiness at the Cipriani Wall Street party.
A new episode of the CW series airs Monday night 9/8c.