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Justin Bieber Hired As 'X Factor' Mentor

Casey Johnson Casey Johnson
8/28/2012 2:07pm EDT

Justin Bieber

The contestants on X Factor judge L.A. Reid's team will be getting a leg up from none other than Justin Bieber, who has signed on to be a celebrity mentor.

According to TMZ, Bieber headed over to Hollywood hills to give his best advice to the team of hopefuls L.A. picked from auditions.

The other judges - Britney Spears, Demi Lovato, and Simon Cowell - have not yet had their celeb mentors revealed. It's going to be hard to top Bieber, though.

The X Factor will premiere on FOX September 12.

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