Sarah Jessica Parker's character rocked the stunning Vera Wang gown during the franchise’s first film based off the hit TV series.

The Gossip Girl family is mourning Michelle Trachtenberg. Chace Crawford, who played Nate Archibald on the CW show, posted a tribute to the late actress, who was found dead in her apartment Wednesday morning.

Following reports of Michelle Trachtenberg's death, the actor's co-stars started posting tributes to her. Here's what they've said.