Sources: Brown's alleged victim was girlfriend Rihanna

The woman allegedly assaulted by singer Chris Brown in Hollywood early Sunday was his girlfriend, singer Rihanna, according to sources close to the couple.

While Los Angeles Police have a policy against identifying alleged domestic violence victims, two people who know both Brown and Rihanna confirmed she was the woman police said had "suffered visible injuries and identified Brown as her attacker."
Brown, 19, turned himself in to police Sunday night after police said they were looking for him. He was arrested on a felony charge, released on a $50,000 bond and given a March 5 court date.
"Detectives investigating the alleged domestic violence felony battery booked him for criminal threats," a statement from the Los Angeles Police Department said. "At the time the case is presented to the Los Angeles County district attorney's office, additional charges may be filed."
Brown, nominated for two Grammy Awards, was scheduled to perform at the show.His girlfriend, singer Rihanna, abruptly canceled her planned Grammys performance, but neither her spokesman nor the show organizers gave a reason.
"Rihanna is well," her spokesman said in a written statement. "Thank you for concern and support."