The worst ever onstage banter

Nathan Williams, frontman with blog-buzz also-rans Wavves, made enemies at Spain's Primavera festival in May of this year by strumming directionlessly, mocking the crowd ("Oooh, I'm on ecstasy!") and insulting his own drummer when he tried to quit the stage ("Hey, get back here motherfucker!"). Williams later blamed a mixture of ecstasy, Valium and Xanax for his meltdown. Photo: Danny North

• Added: Mar 31, 2009

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