When the band asked me if I'd be interested in working on this for them I said: "Heck yeah. Shoot. This kind of thing is the reason I got into art!"
So, they said: "We need a drummer and we want to use one of those flyers that has the tear off tabs for phone numbers." and I said: "Why don't we make the tabs look like teeth." and they said: "Make it weird." So, I did.