Megatallica, or Megadeth and Metallica mashed up together, is kind of awesome for lack of a better description. Recently the mastermind behind these mashups put together Megadeth's "In My Darkest Hour" and Metallica's "Welcome Home (Sanitarium)" into a slowly galloping, sorrow-filled anthem that will leave you confusedly headbanging. Go jam!
Also, check out Megatallica's Facebook page for more insanity!
