'Glee' stars to perform on 'X Factor' semi-final

The cast of hit American show 'Glee' are to make their first live UK TV performance on the 'X Factor' semi-final.

High school heartthrobs Lea Michele and Cory Monteith, who star as drama queen Rachel and football hunk Finn in the award-winning show about a school choir, will appear on the ITV1 talent show.

They will perform when 'X Factor' reaches its nail-biting stage on Sunday December 5.

The performers will also be joined by 'Glee' co-stars Amber Riley, who plays big-voiced soul sister Mercedes, Chris Colfer who stars as fashionista and footballer Kurt, Kevin McHale, who plays wheelchair-bound Artie, and Mark Salling who is the show’s bad boy Puck.

Glee’s sexy, snooty cheerleaders will also be appearing.

The performance will be the first time the all-singing, all-dancing 'Glee' cast have appeared live on a TV stage beyond the US, where the show is made.

'X Factor' bosses would not reveal if the remaining 'X Factor' contestants will perform with the Emmy and Golden Globe-winning stars.