Lindsay Lohan has now locked horns with rival starlet Avril Lavigne after the pop star publicly called her a "loser."
The brawl took place at Hollywood's Chateau Marmont when Lohan sauntered over to Lavigne to say hello.
"Avril was at a table with friends just over a week ago including her boyfriend, Brody Jenner, when Lindsay came over to say hi.
"But as soon as she approached, Avril launched at her and said: ''Get the hell out of my face, you are fake, you are a loser. I don''t like false people. Stay away from me and my friends.''
"Lindsay was furious and screamed back: ''Don't threaten me!'' She then stormed off to security and tried to get them to kick Avril out. They refused to force Avril to leave. Lindsay eventually stormed off," The New York Post quoted an eyewitness as saying.
The fight actually started when Lohan snubbed Lavigne earlier at an event.
"It seemed like she was just being friendly to Avril because she was with people Lindsay wanted to impress. Avril is avoiding going to the Chateau Marmont when she knows Lindsay will be there. She doesn't want any more drama," the source added.