Take That, JLS and Westlife will sing on The X Factor on 14 November
The groups will all take to the stage on the ITV show on 14 November.
Simon Cowell, 51, let slip the news on The Xtra Factor last week and it was confirmed tonight.
He is hoping Take That will be able to help his one remaining act – One Direction.
‘They see what they were like when they were just starting out,’ said Simon.
His other groups, FYD, Diva Fever and Belle Amie, have aready been voted out of this year’s contest.