Simon Cowell Scores Rihanna As Guest Judge For ‘X-Factor USA’

Word on the street is that Simon Cowell wants to make sure the U.S. version of “The X Factor” is a hit. According to TMZ part of how he plans to do that was set in motion by snagging Rihanna as a guest judge.

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