I like all forms of music but I'm more of a blues/Jazz/R&B/Hip-hop/Rap primarily. I stumbled across a few metal/grunge/industrial/goth/rock/ bands that are new to me and naturally I googled the ones I adore.

Not a smile among them, not even a devilish smirk.

I can't for the life of me figure out why not, (I do understand the concept of presentation/image) but I've seen thugs from my old neighborhood do horrendous things and they smile a lot.