Celebrity Sneak Peek: A 'Gossip Girl' Wedding! Before Monday night's season finale, get an inside look at the Upper East Side's most anticipated wedding. By Andrea DeSimone By People Staff Published on May 16, 2008 05:00 PM Share Tweet Pin Email Trending Videos 01 of 05 FLOWERS IN THE AIR Giovanni Rufino/THE CW Leighton Meester and Blake Lively (as Blair Waldorf and Serena van der Woodsen, respectively) trade their plaid uniforms for bright floral dresses to attend the Upper East Side's wedding of the year: the Bass-van der Woodsen nuptials. 02 of 05 GUY TALK Giovanni Rufino/THE CW Chace Crawford (who plays Nate Archibald) and Penn Badgley (Dan Humphrey) kick back between takes of the wedding ceremony. But here's something to gossip about: Where did Chace let his other shoe fall? 03 of 05 THE HAPPY FAMILY Giovanni Rufino/THE CW No wedding day jitters here! The new onscreen family is the picture of Upper East Side elegance as they smile for the camera. 04 of 05 THE PLUS ONE Giovanni Rufino/THE CW Jessica Szhor – as Brooklynite Vanessa Abrams – glams up in a frilly orange frock and high heels as she enters the wedding reception. Poor Blair, looks like Nate is serious about his new love interest! 05 of 05 FRENEMIES Giovanni Rufino/THE CW Wonder who's going to throw the first punch? In a heated scene, Chuck Bass (played by Ed Westwick) confronts his former BFF Nate as a concerned Vanessa looks on.