Motograter. They're pretty freaking sweet. They invented an instrument to make the big ugly sound they wanted. You don't get much more metal than that.
The instrument is kinda cool actually. It's this giant frame with industrial cables strung up on it. They hit the cables with drum sticks and it sounds like a cross between a bass and an electric guitar of some sort. I don't really know how to describe it outside of that, but it's one of the main driving forces in this song. I think you can see him a little bit but the video is a little chaotic so maybe not.
Hope you're all at least finding this journey to be interesting, eh?