There were a couple of biker bars in northern Michigan that we used to play once in a while, and without fail, "Born to be Wild" would always get them going. They're weren't too big on the proggish pop (actually, pretty much no one was) but if things got really bad, whip out "Born to be Wild" and tell them it's time for another pitcher or two. Yeah, baby!
Trivia: This song, and the line "I like smoke and lightning, heavy metal thunder!" is said to be the origin of the term Heavy Metal.