Just about three years after he violently assaulted her, R&B singer Chris Brown is back with pop star Rihanna — musically, at least. On Monday night, each released a new version of a previously released song. Both remixes feature the other party, and both are causing quite the stir.
The speculation built for days. Last week there were rumors Rihanna might release a remix to one of her songs and that Chris Brown would guest on it. Then right on cue, the day of her 24th birthday, Rihanna did it. She tweeted a remix to "Birthday Cake." Featuring a still-on-probation Brown.
