Spoiler Photos! Gossip Girl Season 5, Episode 22, "Raiders of the Lost Art": Blair and Chuck Team Up

Ain’t no party like a Chuck Bass party... but when it features Blair wearing a dress that looks like it was ripped straight from Diana Payne’s closet, well, it's definitely  not your average party.  According to the official synopsis, the old lovers are teaming up to uncover an “explosive secret” about Chuck’s alleged mum (see: the last ep). (But will this close working relationship reignite their love? Beware, Dan!) Get an early look of the scantily-clad action!

Original Air Date: April 30, 2012, 8/7c