A man who claims he was injured during a fracas which also involved Chris Brown and Frank Ocean is suing Brown for damages.
Sha'keir Duarte claims he was punched and kicked by a member of the star's entourage during the fight over a parking space outside a recording studio. On Tuesday he filed the lawsuit against R&B singer for assault and battery.
He claims he suffered a concussion as well as humiliation and mental anguish as a result of the attack.
Mark Geragos, Brown's Lawyer, said: "This is what gives lawyers and lawsuits a bad name is garbage like this," adding that he will seek to have the lawsuit dismissed and will countersue Duarte.
Duarte claims a man identified in the suit only as "Hood" assaulted him. The fight, in January outside Westlake Recording Studios in Los Angeles, is thought to have started when Brown parked in fellow Grammy winner Ocean's parking space.
Afterwards Ocean tweeted that he "got jumped by (Brown) and a couple guys" and suffered a finger cut.
The suit claims Brown - who has been on probation since 2009 following an assault on his ex-girlfriend Rihanna - threatened to shoot Duarte.
At the time Ocean - whose album Channel Orange was widely hailed as the best record of 2012 - stated online that he wouldn't seek criminal or civil penalties.
The battle has simmered for some time between R&B's darling and its biggest badboy. At this year's Grammy awards, Brown refused to join the standing ovation as Ocean collected his award for Best Urban Contemporary Album - only to receive an ear-bashing from Adele.
And last month Ocean used his hyper-expressive blog to post new lyrics to a song called "Versace." In the post - apparently aimed at Brown - he wrote: "You could stay seated I'm taking that Grammy, your music is sloppy."