X Factor: Mariah Will Appear – But Not as a Judge

It's official – Mariah Carey will appear on this fall's buzzy new talent competition, The X Factor, a source close to the show tells PEOPLE exclusively.

Carey won't be a judge, but rather a guest of a judge – in this case Simon Cowell, who hinted recently the diva was interested in joining the show.

"Mariah is definitely confirmed to be a part of X Factor," the source says. "She is confirmed to tape something with Simon Cowell at the judge's homes."

And Carey won't be the only celeb guest, the source adds.

"Each of the judges will tape something with mentors they have selected and Simon has selected Mariah to do that with him. The judge's mentor the talent they pick and she will be working with them," says the source.
Source: People