
VIDEO: 'Glee' Cast Gives Special Live Performance on 'The X Factor'

Dec. 6 2010, Published 12:34 p.m. ET
If you've ever doubted that the cast of Glee can actually sing, then you need to watch their special live performance on Birtain's The X Factor. And even if you've never had doubts, you should still watch!
OK! VIDEO: DARREN CRISS & KATY PERRY PERFORM TEENAGE DREAM TOGETHER!
During The X Factor results show, Jane Lynch (Sue Sylvester) and Matthew Morrison (Will Schuester) introduced the McKinley High Glee Club for a special performance in front of a screaming audience, PopEater reports.
- Unrecognizable Celebrities Who Have Sparked Plastic Surgery Buzz: From Jessica Simpson to Mike 'The Situation' Sorrentino and More
- 12 Celebrities Who Regret Their Plastic Surgery and Other Cosmetic Procedures: Ariana Grande, Simon Cowell and More
- Simon Cowell Was in a 'Dark' Place Until Fiancée Lauren Silverman Showed Him 'There's Much More to Life' Than Working
Want OK! each day? Sign up here!
Simon Cowell looked on as the Glee cast (minus Chris Colfer) performed Journey's "Don't Stop Believin.' "
OK! VIDEO: SNEAK PEEK AT "A VERY GLEE CHRISTMAS"
Watch the performance below!