The YouTube mash-up king William Maranci, who has mashed up Mariah Carey‘s All I Want For Christmas Is You and METALLICA’s For Whom The Bell Tolls.

 

And this one actually sounds REALLY, honest-to-god good, verging on the brilliant. We're not sure what we love about it more: James Hetfield screaming himself hoarse about impending death over the top of the kind of bubbly tune you’ll be hearing in department stores between now and December 25, or the fact that one of the all-time great METALLICA riffs sounds even better with jingle bells over the top of it. 

Check it out and make up your own mind.