Listening to the opening act seems more like a favor than anything else.
What is the worst opening performance you have ever watched?
Mine was at a Sonic Youth gig, earlier this year. There were three openers, but the worst must have been Wolf Eyes.
I have heard people call Sonic Youth "just noise", but these guys are literally JUST NOISE. The set consisted of a man on drums, and another one playing...the stick. How the fuck do you play the stick? I don't know how it's possible, but that guy managed. Oh yeah, he also took a saxophone out in order to play ONE note, very poorly.