Justin Bieber as `X Factor` judge?

Los Angeles: Teen pop sensation Justin Bieber is among the host of top stars vying to judge the US edition of hit UK reality show `X Factor`.

British music mogul Simon Cowell, who is gearing up to bring the popular show in the US, has confirmed that the 16-year-old star had approached him for `X Factor`.

Bieber is currently busy on his `My World 2.0` tour and promoting his autobiography `First Step 2 Forever: My Story`.

"He put himself forward to judge some of the episodes," Cowell told Extra.

However, the music mogul remained mum on details of the show which will debut in the US next September.

Cowell said in addition to Bieber, "one of the most famous singers in the world" has also contacted him for judging duties.