my old band, which was basically just a bunch of people on stage making complete fools out of ourselves, opened for a "viking-metal" band which consisted of a bald white rapper, a dj and a nasty woman with see through pants dancing. at one point she was giving a lap dance to some other drunk bald white guy. terrible rap-metal with stupid death metal vocals. we totally upstaged them.
EDIT: check out the viking rap band's
website- "the hottest underground rapper"... hahaha!
oh, and i went to warped tour a couple times, there were some godawful bands there: we booed sum 41 of the stage. they were crying like little girls, it was great.