Sarah Michelle Gellar, Taylor Momsen and Blake Lively are among those paying tribute to Michelle Trachtenberg, who died Wednesday.

Penn Badgley and Chace Crawford are reflecting on their Gossip Girl days. Badgley said he was on board for Crawford's watch party idea, adding, "Dude, if we live-tweet a viewing of any episode of Gossip Girl, people would love that." "Thats something that actually years later, I think we got to give credit to Gossip Girl." Now though, Gossip Girl will get an all-new spin with the upcoming HBO Max reboot series, which will feature a new cast. RELATED CONTENT:Ryan Reynolds Opens Up About Whether He Watched Wife Blake Lively on Gossip Girl'Gossip Girl' Reboot: Everything We Know About the HBO Max Series'Gossip Girl' Reboot: HBO Max Exec Says First Script Is 'Quite Good'