Leighton Meester and her new Gossip Girl costar Clemence Poesy were together in Queens yesterday to work on their upcoming season with a few furry friends. Leighton was back in the Big Apple following a trip west to LA, where she attended the Teen Choice Awards on Sunday looking chic in her Pucci minidress — check out who else rocked the white trend on FabFlash! As Leighton and Clemence worked in an outer borough, Jessica Szohr was in Manhattan strolling in front of the cameras with Katie Cassidy. Jessica and Leighton, still in her Reem Acra dress, reunited today to work on a morning scene at the Fifth Avenue Cartier store.

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