Glee Live! In Concert! ticket holders got more than they bargained for when Gwyneth Paltrow made a surprise cameo at last night's show in East Rutherford, New Jersey!

After Glee stars Amber Riley and Naya Rivera belted out River Deep, Mountain High Rivera claimed she was “the sassiest” member of the Glee club. Suddenly Paltrow, aka Holly Holiday, then popped out, saying, “Not so fast!” before busting out Cee Lo Green’s Forget You. Love her version!

Glee resident stars Dianna Agron, Mark Salling, Chord Overstreet, Jenna Ushkowitz, Kevin McHale, Harry Shum Jr., and Lea Michele were also on stage for last night's show.

The world's most-hated high school cheerleading coach, Sue Sylvester (Jane Lynch), also made a surprise appearance to kick off the show, which was being filmed for the upcoming Glee 3D concert movie.

Find out which member of the Glee family just got engaged, after the jump ...