Booty Call Ignites Rihanna Beat Down

A text message is what caused Rihanna vs Brown 2009!

TMZ has learned that a text from an unidentified woman about "hooking up with Brown later," was what ignited the fight between the couple. The "alleged" result was Brown punching Rihanna so hard that "she could barely open her eyes for" police photos.

TMZ also reported that Rihanna "had a fat lip, her mouth was swollen, her nose was badly bloodied, and she had contusions on her forehead and both sides of her face."

There is also a mention of an argument over some rapper in the police report, but this is not what caused the fight, so I'm not quite clear on what is has to do with anything.

We'll keep you posted...

UPDATE #1,324 E! Online reports:

"[The couple] squabbling after leaving Clive Davis' pre-Grammy party late Saturday. Shortly after midnight, things blew up. Brown pulled his silver Lamborghini to the side of a street in L.A.'s Hancock Park neighborhood. That's when, per the source, Rihanna grabbed the car keys and tossed them out the window, sending Brown into a rage.

He tried in vain to find the keys, then came back to the car, put his hands around her neck and, according to the insider, said, 'I'm going to kill you!' "