I saw soundgarden at this tiny place (capacity about 200 people) as the opening act for mudhoney, back in '87, first time the two of them came to the east coast, when SG had only their first "screaming life" ep out. the room was filled with slightly nerdy indie rock types (no offense, I was was once one). then these long-haired metal-looking dudes climbed on stage, complete with shirtless singer, and without saying a word, opened with a ferocious cover of "communication breakdown". the place blew up.
if you're gonna go for it, might as well embrace your inner Robert Plant and go all the way.