Jun 17, 2011 at 12:20 pm

Gwyneth Paltrow: Glee Concert Surprise Performance!

Gwyneth Paltrow hits the stage during Glee Live! In Concert! on Thursday (June 16) at the Izod Center in East Rutherford, New Jersey.

The 38-year-old actress, who guest starred on the hit Fox show as substitute teacher Holly Holiday, belted out Cee Lo Green‘s “Forget You.”

After performing “River Deep, Mountain High” with Amber Riley, Naya Rivera claimed she was “the sassiest” member of the Glee club, when Gwyneth popped out, telling her, “Not so fast!”

Also pictured: Kevin McHale, Harry Shum Jr., Lea Michele, Dianna Agron, Mark Salling, Chord Overstreet, and Jenna Ushkowitz.

Jane Lynch also made a surprise appearance to kick off the Chevrolet-sponsored show, which was filmed for the upcoming Glee 3D concert movie, and to also introduce the Warblers.