A new addition to the latest Guitar Hero Metallica cast, Heavy Metal head King Diamond from Mercyful Fate will be joining the cast of guest artists in the game. The session was overseen by guitarist Hank Shermann in Denmark the bands home studio, and then Diamond lended over his vocals in another studio in Dallas, Texas , and mixed the song with J.T. Longoria.

“It's been absolutely amazing to be a part of this Guitar Hero experience. It was quite a trip to re-record the song ‘Evil’ almost 25 years after the original recording took place. The end result with four out of the five original musicians turned out so much better than I would ever have hoped for,” said King Diamond. “Seeing my animated character take form was totally eerie in a very good way. It's so strange to see yourself animated in such perfect detail - cross bone microphone, Eye necklace and all. This game looks and sounds METAL all the way. HORNS UP!!!”

Check out the second screenshot below...