Courtney Love went off the deep end just a little bit during a Hole concert in Sao Paulo, Brazil, earlier this week. Apparently, an audience member who was waving a photo of her late husband Kurt Cobain pushed her over the edge.

I don't need to see a picture of Kurt, a--hole, she told an unseen audience member from the stage. I'm gonna have you f--king removed if you keep throwing that up.

I'm not Kurt. I have to live with his and his ghosts and his kid everyday. Throwing that up is stupid and rude. And I'm going to beat the f--k out of you if you do it again.

You know what, you weren't f--king married to him, I f--king was, Love continued. You didn't get kicked out a band by him like Dave, he did. Go see the f--king Foo Fighters and do that sh-t.

(Here, Love was presumably referring to reports that Cobain amended his will to have Grohl removed as a member of Nirvana. Love and Grohl have long been at odds over the distribution of Nirvana royalties).

Love -- who otherwise seemed pretty alert and together --- subsequently gave the audience the finger and walked off the stage.

Her guitarist, Mick Larson, told the audience that Courtney would return if they chanted The Foo Fighters are gay. The chant was lukewarm, but Love returned nonetheless.

I don't care what you listen to at home, but if a guy takes money off my kid's table, f--k him.

Contrary to what she said in the outburst, Courtney does not technically live with Kurt Cobain's kid every day. Kurt and Courtney's daughter Frances Bean is currently attending Bard College in Tivoli, NY. Also, the mother and daughter are reportedly estranged.

According to Rolling Stone magazine, Love also insisted she was a gay icon at the concert, and said this status permitted her to use the word fags.

Speaking of the Foo Fighters, Grohl had some choice words himself for an unruly audience member at a concert at the iTunes festival this summer. Grohl ordered the audience member - who apparently was fighting - to leave the venue.

You don't come to my show and fight, you come to my show and f--king dance, you a--hole, Grohl said.

Here's some video of Courtney Love's rant, followed by footage of Grohl at the iTunes festival.

And here's Dave: