'Glee': Gwyneth Paltrow Sings 'Forget You' at 'Glee! Live!' Concert (Video)

The actress dresses as her TV character Holly Holliday for the New Jersey appearance.
Michael Yarish/FOX

Gwyneth Paltrow made a surprise appearance at Thursday night's Glee! Live! concert in New Jersey. Dressed as her Glee character Holly Holliday in a grey miniskirt, black turtleneck and black boots, the actress belted out Cee Lo Green's "Forget You" to a cheering crowd.

After the performance, Paltrow shouted "let's go get some tacos" -- a phrase coined by her character on the Fox series.

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Paltrow played a substitute teacher on the show on four episodes. She's in consideration for Emmy's guest star category but as The Hollywood Reporter's Tim Appelo writes, her star wattage may put other actors at a disadvantage.

Glee! Live! In Concert features 13 actors from the show, including Lea Michele, Cory Monteith, Amber Riley, Chris Colfer and Kevin McHale. Songs from season one and two like "Empire State of Mind," "Toxic" and "My Life Would Suck Without You" are incorporated into the production, which is touted as "equal parts musical theater, giddy pop culture phenomenon and Journey-loving rock show."

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There are two Glee! Live! In Concert! shows Saturday in Long Island, after which the cast and crew head to the U.K. for dates in Manchester, London and Dublin.