Wow. The Rumors are True. Chris Brown Punched Rihanna. What the EFF??

The mother-effing L.A. Times is reporting that Chris Brown did INDEED smack a bitch UP. Holy crap.

[Updated 8:17 p.m.] R&B singer Chris Brown has been booked tonight on suspicion of making felony criminal threats in connection with an incident involving his girlfriend, pop singer Rihanna, according to Los Angeles Police Department sources familiar with the case.
Brown was being booked at the Wilshire Division station and is expected to post $50,000 bail, sources said.
Los Angeles police said earlier they planned to detain Chris Brown for questioning on an alleged domestic violence assault.
[Updated 7:25 p.m.] Brown arrived at the Wilshire Division Police station about 7:15 p.m., accompanied by his attorney Mark Geragos and Geragos' investigator, Scott Ross. The pair drove into a parking lot behind the police station on Venice Boulevard just east of La Brea Avenue in a black Cadillac Escalade. They entered through a back door where a posted sign read “authorized personnel only.” Police are expected to release a statement later this evening
Both Brown and Rihanna canceled their performances at tonight's Grammy Awards.
The alleged incident was reported about 12:30 a.m. Sunday in Hancock Park.
Brown and Rihanna, whose full name is Robyn Rihanna Fenty, were apparently in a car together and got into an argument on North June Street, according to a Los Angeles Police Department statement. Brown stopped the car, the two got out, and the argument escalated, according to police.
A witness called 911, but Brown was gone when officers arrived at the scene. The woman suffered visible injuries and identified Brown as her attacker, according to police.