Diarrhea Planet at Brooklyn Night Bazaar
Ignore the name for a moment (if you can manage). These guys are totally nuts on stage. Four guitarists means that at least one person is always flailing about or messing with the audience or something fun like that. And dang, do these guys ever rock while they're at it.
You can hear them on BandCamp or their Blogspot site. As an extra added bonus you'll learn how to spell "diarrhea" properly after seeing it so much.