Hollywood Dirt – Katy Perry and Rihanna ‘Rihunited’ + Footage From the Bieber Brawl & MoreHollywood Dirt – Katy Perry and Rihanna ‘Rihunited’ + Footage From the Bieber Brawl & MoreKATY PERRY AND RIHANNA ARE FRIENDS AGAIN: You can breathe a sigh of relief, America. All signs point to KATY PERRY and RIHANNA being friends again.mikemike