Rihanna set off a firestorm of controversy last night when a remix of RiRi’s Talk That Talk mini-song “Birthday Cake” leaked, featuring none other than former boyfriend Chris Brown.

In case you forgot, Chris Brown is still on probation after assaulting Rihanna the night before the Grammys in 2009.

Needless to say, fans and critics are divided over Rihanna’s decision to be even remotely friendly towards Brown, let alone record music with him. And the overtly-sexual nature of the song doesn’t make things much better.

Brown’s first line: “Girl, I wanna fuck you right now/Been a long time, I’ve been missing your body.”

So is it RiRi’s prerogative, or is she setting a bad example for young women? Is Chris Brown a changed man, or is the rumored rekindling of their romance both dangerous and a career killer for the 23 year-old starlet?

Check out the remix of “Birthday Cake” below:

httpv://www.youtube.com/watch?v=2rci2nkyTmc

Is it inappropriate for Rihanna and Chris Brown to release music together?

Should we all just forget about what happened?

Sound off below!