I want to play a modern campaign, in which the PCs are all members of a folk rock band during a zombie apocalypse. They bring sloppy acoustic joy to a beleaguered population, and end up ripping people off, taking their shit, and leading them to their doom in order to save themselves.

Most of my friends play instruments, and one's not too bad at singing (albeit he's very self conscious). So, I think this is a pretty kickass way to start a band.

But anyways, that's not why I'm here. I've played D20 Modern before, and it's not very relevant to my interests. What system would /tg/ suggest?

tl;dr wat system is bettar 4 zombies that is not D20 Modern?

Picture.... sorta related.