Well, it finally happened - someone managed to combine Metallica and Mariah Carey - and just in time for the holidays.
Mash-up wizard William Maranci has combined Metallica's "For Whom The Bell Tolls" with Carey's "All I Want For Christmas Is You" - and the results are surprisingly great, layering guitar riffs and James Hetfield's vocals over that bubbly Christmas beat.
You might remember Maranci from his Halloween mashup of "Ghostbusters" with the Beastie Boys' "Intergalactic"
What other Christmas songs should be combined with metal classics? Is it too early for Christmas music?