Something weird has happened to heavy metal lately. Weird, but fun.
Exhibit A: Van Canto. A capella metal group from I think Germany. Five singers and a drummer. No guitars. What? You heard right. Total metal annihilation. Love the guy who does the guitar "solo."
Exhibit B: Grave Digger, from Scotland. Ach ye bonny lassie! You got bagpipes in me metal!... No wait, you got metal inna me bagpipes. Mmm... tasty.