Taking place at London's Wembley Arena in front of 10,000 fans, others announced to perform include Leona Lewis, Michael Bublé, JLS and One Direction. It has not been confirmed if any of the announced guests will also serve as duet partners for the three finalists.
Coldplay frontman Chris Martin, who previously admitted that the group had been split over an invite to perform on the ITV1 show, commented: "We're all big X Factor fans so we're very excited to play live on the show."
Meanwhile, 2006 champion Lewis previously revealed that she would perform, as she releases a three-track EP later this month. JLS and One Direction, who have both performed during the current series, will also take to the stage.
Show judge Gary Barlow added: "This is the biggest final The X Factor has ever done. Being at Wembley Arena for the first time and in front of 10,000 people with Coldplay performing, I can't wait - it's going be an amazing night."
Amelia Lily, Marcus Collins, Little Mix and Misha B will all compete in this weekend's semi-final, which will have the song themes Motown and 'The Song To Get You To The Final'.
> 'X Factor' winner to be crowned in four-hour final
> 'X Factor' Final Four: Who should win?