'Glee' Cast Parties Following Surprise Performance with Gwyneth Paltrow (PHOTOS)
However, it was their surprise guest at the O2 arena that everyone is talking about!
Gwyneth Paltrow, who guest stars as Holly Holiday on the FOX show, showed up to perform Cee Lo's song "Forget You" with her Glee friends! She yelled to the audience, "I don't know about you all but I'm ready to sing a little Cee Lo! Hit it!" The actress showed in up in a super-short LBD and wasn't afraid to dance and sing her heart out! Check out the video!
New to Twitter, Gwyneth tweeted about the experience, writing:
"Just took four 7 year olds to glee live london. somebody pass me something vaguely hallucinogenic."This isn't the first time we've seen Gwyneth singing this song! The actress also danced on a piano at the Grammy Awards with Cee Lo on the keys.
What do you think of Gwyneth's live Glee performance? Sound off in the comments section! Up next for the Glee kids, Dublin, Ireland until July 3, so be sure to follow Celebuzz on Twitter, Facebook and Tumblr for all your Glee pics and performances!

