Taylor Swift Teams Up with Carly Simon in Boston for “You’re So Vain”

taylorswift-carlysimon-072913Boston was in for a big treat when the Red Tour rolled through town on Saturday.

Taylor Swift loves bringing famous pals onstage to surprise the audience with duets and Carly Simon joined Taylor at Gillette Stadium in Foxborough, Mass. In front of a sold-out crowd of more than 55,000 fans, the two performed Carly’s hit ““You’’re So Vain.””

After the show, Taylor tweeted, “Got to sing ‘You’re So Vain’ with Carly Simon at Gillette Stadium tonight!!!!! Unreal. I could not possibly look up to her more.” She added, “So @GMA will have exclusive backstage interview and performance clips with @CarlySimonHQ and me tomorrow morning. 7 a.m. on @ABCNetwork.”

Check out the performance below.