Everybody, even me, sometimes had to compromise on something, doing things we know to be wrong, and this happens doing whatever job in the world. But a singer must have the courage of saying no.
I always thought of vampires, especially the young-adult ones, as a metaphor for sex - sucking blood, forbidden, taboo. I think they just ooze sex. Vampires are all the big themes in life in one attractive, bloodsucking package.