It'?s Valentine?s Day on the Upper East Side and Blair can?t resist playing cupid for someone she loves. Georgina (recurring guest star MICHELLE TRACHTENBERG) is intent on stirring up more drama, so she decides to crash Nate'?s Valentine?s Day party. Meanwhile, Serena is shocked by something she witnesses at the party. Musical group ST. VINCENT performs.
Download the TV Guide app for iPhone, iPad and Android!