Rihanna and Chris Brown might not work as a couple, but the pair have hit the recording studio and are featured on each other's new songs, Rih's "Birthday Cake" and Brown's "Turn Up the Music."

Three years after Brown took a felony rap for beating then-girlfriend Rihanna at a pre-Grammy party, they've joined forces to collaborate on the remixes and have pushed both song releases on Twitter. 

Rihanna may be all about forgiving, but music fans aren't. Brown got a lot of angry tweets after his performance on the Grammy stage this year from viewers who felt that with his violent past, he didn't deserve to appear at the awards show. 

Listen to both songs here:

Rihanna's 'Cake' Feat. Chris Brown:

Tags: Chris Brown Rihanna