Avril Lavigne and her boyfriend injured in a fight

The pop singer Avril Lavigne, 27, was allegedly injured in a fight outside the Hollywood Roosevelt Hotel in the early hours on Sunday. Brody Jenner, her boyfriend, was also injured, apparently when he tried to intervene.

"I got attacked by 5 people last night out of nowhere. Not cool. My face is f----ed," Lavigne wrote. "As in black eye, bloody nose, hair ripped out, scratches, bruises and cuts. So not ok to be abusive to others. Violence is NEVER the answer."

Jenner, 28, a former star of MTV's The Hills, was seen with a gash on his head in video stills from the scene. "Interesting Saturday night," he tweeted. "Just got of the hospital with a new scar on my face. Charges/chargers!!!"

It was unclear who the assailants were, or whether police had any leads. An LAPD spokesman had no confirmation of the alleged fight, the CNN reports.