Avril Lavigne, boyfriend attacked in LA

Avril Lavigne has slammed a group of people who attacked her and her boyfriend during a night out in Hollywood. Photo / Supplied

Avril Lavigne has been left with a "black eye" and a "bloody nose" after being attacked by five people.

The Canadian singer was enjoying an evening out with her boyfriend, The Hills star Brody Jenner, at the Roosevelt Hotel in Hollywood on Saturday night when the group turned on the couple, leaving her with a messed up face.

Writing on her Twitter page, Avril said: "I don't fight. I don't believe in it. To clear things up I got attacked by 5 people last night out of nowhere. Not cool. My face is f****d.

"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. (sic)"

Brody didn't escape from the incident unhurt either and was discharged from hospital yesterday after allegedly being hit with a bottle.

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

Prior to the attack, Brody and Avril had been enjoying the "best night" ever, with the reality TV star - who is the step-brother of Kim Kardashian - admitting he was "so happy" with his girlfriend, who he has been dating since February 2010.

Brody wrote on his twitter page: "Having the best night with the love of my life @AvrilLavigne so happy right now!! (sic)"

- BANG! Showbiz