Chris Brown beats Rihanna, reports say

According to news reports, R&B artists is being investigated for beating his superstar girlfriend, Rihanna.

MediaTakeOut.com is reporting this: "One of Rihanna's friends reached out to MediaTakeOut.com. She is bruised and upset, but she did not suffer any SERIOUS injuries."

This is what FoxNews is reporting.

According to a Los Angeles Police Department report, officers arrived on the scene after receiving a 911 call reporting a disturbance. A woman with visible injuries identified Chris Brown as her attacker. The victim said they were arguing in the car, which escalated when they stopped.

Brown had already left the scene when authorities arrived.

Insiders confirm that some kind of incident took place in Hancock Park last night after the couple left the pre-Grammy gala at the Beverly Hilton. Same insiders say they are shocked and that "Chris is a good kid, well brought up."