Dang! Dylan and Jimi are 2 of my favorite artists. Why didn't I immediately think of Machine Gun and Knocking on Heaven's Door?
Not so much a gun song,but Arcade Fire's "Haiti". The lady singing's parents fled Haiti before she was born when the dictator was killing civilians like a nazi. Not my favorite song by them,but they are the real deal,folks. Don't seem to have as much of a following in the US,but they are HUGE in Canada and Europe. Took the 2010 Grammy for best album of the year. Next day they performed at the Brit Awards where they took best international album and best international band. Rolling Stone gave there first album,Funeral, #6 spot for best album of the decade. Check out some of their concert videos shot in Europe during 2010 and this year. So far after stumbling across them performing on ACL in 2007 I have met exactly one other fan.
I'll probably get a warning from the mods on this post,but I LOVE AF!!!