What's that song about werewolves? I have the tune stuck in my head and it's driving me nuts?

I'm pretty sure it has to do with werewolves. I don't really know how to explain it... there's a guy singing and in the chorus it's like "my blah blah blah blah blah blah blah nah nah nah nah nah" (not literally blah blah blah lol but i'm pretty sure there's a repetition of nahh or something. Anyone have any idea what this song is? i know i'm not being very descriptive... but if you have any idea whatsoever please tell me =]