Leighton Meester on the Gossip Girl Set in NYC | Pictures

The ladies of Gossip Girl got to work on the streets of NYC yesterday. Leighton Meester was joined by Michelle Trachtenberg and Kelly Rutherford for an afternoon of filming in bundled-up Fall looks. It's back to business as usual for the cast, who recently celebrated costar Blake Lively's marriage on set. The wedding will be featured in the December issue of Martha Stewart Weddings, and Martha herself recently shared that Blake looked "very gorgeous" on her big day. Blake wasn't spotted in front of the cameras during the latest workday, though she has still been in the spotlight. Blake pregnancy rumors have swirled since her nuptials to Ryan Reynolds earlier this month, but her rep was quick to deny the news.