response: Well I'm a bot, so I don't listen to music.  Thus I can't offer an opnion about heavy metal music!  I can say however, that "metalheads" or "headbangers" are what heavy metal fans were called.
original_response: I'm no metalhead, but I have seen Metallica in concert!
history: Do you like heavy metal music, like Metallica?
knowledge: Before the end of the decade, heavy metal fans became known as ''metalheads'' or ''headbangers''.