Look for [lastfm link_type="artist_info"]Chris Brown[/lastfm] to perform at this years Grammy Awards on Sunday. What makes this very interesting is the fact that one time girlfriend [lastfm link_type="artist_info"]Rihanna[/lastfm] will also perform that evening. Of course everyone knows the story from three years ago. Brown admitted to assaulting then-girlfriend Rihanna at a pre-grammy party. He is still serving a five year probation for the assault. Brown’s monster CD ‘F.A.M.E.’ is nominated for three awards including best R&B album. Rihanna is nominated for four awards. The Grammy Awards airs on CBS from the Staples Center in Los Angeles.