Music mogul Simon Cowell has revealed that he is planning to leave Britain's X Factor to concentrate on the US version of the show.

"At the moment you are going to see me doing one show next year and not one in England," the Sun quoted him as saying.

"I have a contract for this year and that is it," he said.

Simon, 50, dropped his bombshell as he confessed the launch of US X Factor could leave him no time to do the UK programmes.

He said he still had not decided if the UK's X Factor could go ahead without him as a judge however, said it would have to switch dates.

Simon is due to start US X Factor in September next year just as the UK show would be getting into full swing.

"It will have to move. Do people want it back?

"I am going to sit it out for a few more weeks before I make a final decision. And it has to be fun. The minute it stops being fun, bye bye," he added. (ANI)