Chris Brown Arrested...Assault on Rihanna?

Some interesting news has come out of the Grammys last night. No, I'm not talking about MIA being ready to pop onstage, but news that Chris Brown was arrested over the weekend for assault. I won't go into detail trying to cite all the various sources who are breaking this story since the details are all still unconfirmed. Here's the gist: Chris Brown turned himself in for assault on a woman, sources are reporting that woman was his girlfriend Rihanna, this story seems to make sense since both artists backed out of their Grammy performances last minute.