'Gossip Girl' Celebrates 100 Episodes with Mayor Bloomberg

Blake Lively and Mayor Michael Bloomberg pose for photos as they celebrate Gossip Girl‘s 100th episode at Silvercup Stuios on Thursday (January 26) in New York City.

Joining the 24-year-old actress were Penn Badgley, Ed Westwick, Matthew Settle, Kaylee DeFer, and Kelly Rutherford.

PHOTOS: Check out the latest pics of the cast of Gossip Girl

Mayor Bloomberg said that the CW show has made New York City a central character and it’s an ambassador for the city as well!

20+ pictures inside of the cast of Gossip Girl celebrating the show’s 100th episode…