Inspired by the early death metal greats, this Finnish foursome was among the first to add keyboards to an infuriated cauldron of riffs back in the early ‘90s. In the years since, they've become purveyors of extreme music of all varieties. Children of Bodom can deliver a slice of Viking-worthy power metal, then turn around and explode into a violent thrash workout. In recent years, they have simplified and strengthened their attack, but the band is still best known for their neoclassical epics—rollicking waves of intricate guitar stoked by heavy hostility. Worship the chaos!