Blake Lively occupied Wall Street Saturday night to celebrate the 100th episode of her hit show, Gossip Girl. Wearing a stunning sheer silver & white tassel dress from the Marchesa Spring 2012 collection, the actress joined fellow cast members Chace Crawford, Ed Westwick, Penn Badgley, Kaylee DeFer, Leighton Meester and a host of other stars at Cipriani Wall Street for the big celebration.

One of New York City's finest banquet facilities, Cipriani Wall Street was once the home of both the New York Merchants Exchange and the New York Stock Exchange.

As for Gossip Girl, the show's 100th episode won't air until January 30th, and its future after that is still in question as it hasn't officially been picked up for a sixth season. But producers have high hopes despite falling ratings, and they expect the CW to order more episodes.

"I can't really say at this point, but I would hope and expect that there would be at least another year - if not years – to come," Warner Bros. Television president Peter Roth told

"We'’ve had no one saying to us, 'Wrap it up. This is the last season,'" says executive Producer Joshua Safran. "So we're not [treating the season finale] as such."