Rihanna's Grammys 'Mess Up'

Rihanna won't be performing at this year's Grammys. And she reckons she knows why. The singer says she messed up last year's show with the drama that occurred between her and ex-boyfriend Chris Brown. Rihanna was due to perform at last year's event with Chris, but they had to cancel at the last minute after he attacked her before the show. Speaking about the drama, Rihanna said: "We messed up the show pretty bad last year, so they're probably a little mad at me right now."We don't think anyone's mad at you, Rihanna. She is up for two awards this year, and is expected to attend the event in Los Angeles this Sunday.