Blake Lively and Leighton Meester linked up with their male costars on the NYC set of Gossip Girl yesterday. After arriving at her trailer in a long, hippie-esque dress, Blake changed into a formal number covered in sequins. Leighton wore a robe over a similar fancy dress. Ed Westwick and Penn Badgley got a head start on the shooting earlier in the morning with Michelle Trachtenberg and Chace Crawford. The upcoming season of GG promises more of the drama we've come to expect from the Upper East Siders — check out the trailer for the final season of Gossip Girl for a peek at what's to come.