The cast of ‘Gossip Girl’ is paying tribute to their late co-star, #MichelleTrachtenberg — known for her iconic role as Georgina Sparks — who tragically passed away yesterday at age 39. See the heartfelt messages they shared on IG at our link in bio. 📸 jessicaszohr chacecrawford gossipgirl #gossipgirl #celebs #news #reactions