According to Rollingstone.com, the troubled songstress raged to the surprised punter holding a pic of Kurt at SWU Festival In Brazil, "I don't need to see a picture of Kurt, a**hole, and I'm going to have you f**king removed if you keep throwing that up."
"I'm not Kurt – I have to live with his shit, his ghost, his kid every day. Throwing that up is stupid and rude and I'll beat the f**k out of you if you do it again."
The 'Celebrity Skin' hitmaker then stormed off stage - but not before she added, "Go see the f**king Foo Fighters and do that sh*t."
After a few minutes she returned to the stage after her guitarist Micko Larson got the audience chanting, "the Foo Fighters are gay."
Just before their encore, Courtney told the crowd, "I don't care what you listen to at home, but if a guy takes money off my kid's table, f**k him."
Was Courtney right in blasting a fan for holding up a pic of Kurt? Let us know what you think by commenting below! Meanwhile, see more of the trash-rocker in the vid below…
Copyright : MTV CLASSIC