Simon Cowell is in the process of signing Adele up to appear on the live final of this year's X Factor, it has been reported.
The music mogul is said to have offered Adele the part in the new judges' house section of the show but she had to decline due to work commitments.
A source told The Daily Star: ''There's no denying Adele is the biggest singer in the world right now and Simon wants her to appear on both the UK and US X Factors.''
Adding: ''He couldn't get her for the judges' houses stage, so he now wants her to sing with one of the contestants on the grand final in December.''
The new series of the X Factor launches later this year with judges Kelly Rowland, Tulisa Contostavlos, Gary Barlow and Louis Walsh.
The Power Of The X Factor
You can keep up to date with all the latest news from Gigwise by following us on Twitter and liking us on Facebook.

Lady Gaga: 'Bad Romance' Is My Best Song
Professor Green Slams 'Moron' Journalist Over London Riots Comments
Ex-Red Hot Chili Peppers Star John Frusciante 'Being Stalked'
Jessie J 'Who's Laughing Now' Video Unveiled - Watch
As Flaming Lips Stage Collapses...50 Unlucky Live Shows
London And Manchester Riots: Jessie J And Other Music Stars React On Twitter
Y Not Festival 2011: The Best Bits In Photos