The cast of Gossip Girl got their glad rags on to celebrate 100 episodes of their show.
They gathered at Cipriani Wall Street in NYC last night to toast their success.
Leighton Meester and Blake Lively both went for white and looked stunning.
Gorgeous guys Penn Badgley, Ed Westwick and Chace Crawford scrubbed up nicely too.
They were joined by co-stars Michelle Trachtenberg, Kaylee DeFer, Kelly Rutherford and Matthew Settle.
Chloe Moretz also joined the gang.
Click through to see pictures of them all...




























