Better grab a welding mask, because your face is about to melt. Activision has released the official trailer for Guitar Hero Metallica and it's not for the faint of heart. No ma'am, this isn't your average party game. Promising Metallica's "fiercest songs" I wouldn't expect this game to be for anyone other than the greatest of Guitar Heros.
There's no date set yet, but it looks like the latest title will support Guitar Hero: World Tour's instruments for a full four player co-op experience. Ready to shred some metal? Trailer after the break.