Avril Lavigne, Brody Jenner tweet they were attacked

Avril Lavigne and her boyfriend Brody Jenner have tweeted about being attacked and bloodied in Los Angeles.

In a tweet sent out on Sunday evening, Canadian pop-rocker Lavigne wrote that she "got attacked by five people last night out of nowhere."

She tweeted that she had a black eye, bloody nose, had hair ripped out, and was left scratched, bruised and cut.

Lavigne added that she doesn't believe in fighting and that it's "not OK to be abusive to others. Violence is never the answer."

Jenner — who has appeared on shows such as The Princes of Malibu and Bromance — had tweeted earlier that he was out with Lavigne and "having the best night with the love of my life ... so happy right now!!"

He later tweeted: "Interesting Saturday night.... Just got (out) of the hospital with a new scar on my face."

A spokesman for Lavigne's record label would not provide any further details on the incident.