Rihanna x factor Guest Judge

Rihanna x factor Guest Judge

 Rihanna x factor Guest Judge. Music mogul Simon Cowell has reportedly brought Rihanna on board to act as a guest judge on the new US X Factor.

The 51-year-old looks to be pulling out all the stops to ensure the American version of the talent competition is a hit. On the show, judges bring on guests to help them decide which hopefuls to mentor - and Antonio 'L.A.' Reid, who signed Rhi Rhi, 23, in 2005, will bring her on board to help him decide.

According to US website TMZ.com, the Man Down hitmaker enjoyed partaking in the UK finale last year, and it looks as if Cowell feels the same way.

The new X Factor is due to launch in the US on September 21.

Source: monstersandcritics