Mariah Carey will take part in the US edition of The X Factor, Simon Cowell has confirmed.

The music mogul said Carey, who is pregnant with twins, would participate in the live show, but stopped short of naming her as a judge.

"I think Mariah will have a role on the TV live shows. I met her recently and she was on great form," Cowell told US radio host Jackie Brown.

"And her idea was to be the judge of the judges, which only Mariah could come up with."

Cowell added that Carey would definitely be involved "in some form" because "I literally adore her".

So far, LA Reid is the only confirmed judge for the US edition of the talent series. UK judge Cheryl Cole has also been linked to the programme.

(by Jason Gregory)