We were stalling for another local artist to get to the open mic night, so the producer and I tricked the host into letting me perform a live cover of John Cage's hit song 4'33".
I asked the producer if I could do it, jokingly, and he told the host I was going up to do a cover. So the host introduced me as performing a cover poem and yielded the mic to me.
And I corrected him, saying, "I'm actually going to perform an a capella cover of this one song. It's by well-known avant garde composer John Cage and it's called 4'33"." At which point I hear the host say something to the effect of "oh God dammit." I "pulled up the sheet music" which is to say a timer set for four minutes and thirty-three seconds, started the timer, and stood there, finding various things to stare at so I didn't have to look at, what was at this point, a very small audience. Everyone except the en route artist had performed, and most of the crowd had gone home, so it was just me with a microphone, in front of my friends and a few strangers, standing there silently glancing between the ground and the timer and the wall and the timer.
Luckily, the performer we were waiting on got there during my performance. Producer insisted on me performing the whole song.
100% worth it just for getting a bit of a rise out of the host.