NOT CRAP provided it's a piss take.

I opened for Alice Donut in New York last year, and as I was restringing my guitar at soundcheck, I got the idea in my head of starting the set off with "Sinead O'Connor On TV," a song they hadn't performed since the departure of original bass player Ted Houghton, and which I had never played. This I did, come showtime. I played it totally straight, and impressed myself by remembering most of the words. It generated larfs, bonhomie, and warmth.

Not really much of a story. Sorry.

Weezer covered a Foo Fighters song when they opened for Foo Fighters last month.

I don't know which song it was, but it was pretty neato.

This go's back to when I was in High school. I was in this pretty crappy 3 piece band, we did our own hastilly written/scrappy stuff, and none of us could play or sing very well except for the piano player who was classically trained and could play just about anything by ear. We had a laugh being in our first band, did a few local gigs: including a couple in a local hospital for the insane which were really something. Then there was this other group made up of the best looking/posiest group of guys in school, and they modelled themselves on Duran Duran and did U2 and Big Country and Police covers and stuff like that. They acted like they were complete stars the whole time, and to be fair had a fair size teeny-girl following. They patronised the hell out of us, which we found more funny than anything else. Come Christmas they're invited to play this big party that's being organised. Much to their displeasure we're invited to support them as we know the guy who's organising the party. Cue weeks of mutual piss-taking with them coming out on top. There's a buzz going round: these guys are going to be big!
3 days before the gig we're sitting around somewhere and overhear them talking up the party, who they're going to fuck afterwards, etc, during which they finalise their killer set-list. that night we go back to our rehearsal room and get the pianist to teach us the same songs. We performed them very, very badly, went down better than we ever had, and of course killed the headliner's set stone dead. Though to be fair to them they were surprisingly cool about it. Probably because unlike us they didn't have to play every breath you take.

BadComrade wrote:I think it'd be funny to see the opening band do the headliner's "hit" song, but play it better than the headliner do.

A tussle in the back alley afterwards would be the encore.

At a festival in 1992 I once saw Bjorn Again amusingly cover 'Smells Like Teen Spirit'.
Nirvana, then the biggest band in the world, were headlining.
The amount of balls that took impressed me.