metallica, all that remains, killswitch engage, trivium, beatles, collective soul, in flames, as i lay dying, amon amarth, machine head, and tons of metal and rock artists that i'm not going to list. i don't listen to just one genre, so why limit to one? if a band can't play a slow song in the middle of a heavy or thrashy set, then what's the point of making music to do what you want?