The music mogul will watch the final performances on The X Factor via Skype before talking to the judges in the first part of The Xtra Factor.

© PA Images / Chris Pizzello/AP/Press Association Images
The Syco boss left the show last year and is yet to appear on this year's live shows due to commitments to Fox's X Factor USA series. He remains a producer of the ITV1 programme.
Cowell will be projected onto a screen at the back of the stage, which is reportedly the largest in Europe.

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This weekend's X Factor final will feature contestants Marcus Collins, Amelia Lily and Little Mix as they fight for the chance to win a recording contract with Cowell's Syco and a Christmas single.
Cowell has spoken to the contestants via Skype, offering advice and comments on their performances.
The X Factor final will begin at 8pm on Saturday on ITV1.
Watch yesterday's X Factor finalists' press conference in full below:






