"The Black Eyed Peas will also take to the stage as a guest act during the show. The remaining X Factor acts, who must perform one “club classic” as well as a song of their choice, are: Mary Byrne, Matt Cardle, Rebecca Ferguson, Cher Lloyd, and One Direction. "also
For the stars of Glee, shown in the UK on E4, Saturday will be the first time that they have appeared live on stage for television outside the United States.
Editor's NOTE: Many are looking forward to this. Last week Justing Bieber increased viewership 10x the normal views. Glee is expected to break the records.
Glee cast: Lea Michele, will perform along with Cory Moneith, Amber Riley, Chris Colfer, Kevin McHale and Mark Sailing.