‘The X Factor’ Scores Big with Rihanna

Filed under: Rihanna, Simon Cowell, The X-Factor

Simon Cowell is pulling out all the stops to make sure the U.S. version of “The X Factor” is a hit — we’ve learned he’s snagged Rihanna as a guest judge.

Judges on the show bring on guests to help them decide which contestants to mentor — and Antonio “L.A.” Reid, who signed Rihanna back in 2005, will bring her on board to help him decide.

According to our sources … RiRi loved doing the U.K. finale last year, and the feeling from Simon was obviously mutual.