Now that's a concert I would attend, probably with my own folding chair.
Making Techno Music With A Pressure Washer, Without A Sequencer

This is a video of Klangphonics performing a techno song without a sequencer, but WITH a power washer and megaphone. It’s actually a fairly decent song too, as least as far as songs made with pressure washers go. Give me a power washer and a megaphone, and I can do anything — that’s what I told the hiring manager at my last interview. I did not get the job, but I did get a handful of candy from the bowl on their desk on my way out.