Simon Cowell has revealed that his biggest fear is to not be relevant on X Factor as a judge.
As the 54-year-old music mogul prepares to mark his return as an X Factor judge on ITV, he admitted that his biggest fear is to "no longer being relevant", the Mirror reported.
He added that he doesn't care if he is liked or not, but he is concerned about being relevant.
The 'Syco' boss also blasted other talent show judges who have not been at the top of the industry and manage big stars as "idiots".