First of all, PLEASE forgive the lateness of this reply as I was just looking for this very version of this song and I found it after an hour of searching.

The title is: Carol Of The Bells By: Trans Siberian Orchestra

Featuring an instrumental performance by non other than Metalica.

I happened to stumble upon this article that read in part:

"I have to say the worst version of Carol of the Bells is by Trans. Siberian Orchestra. It's madness and heavy metal, ratted hair, loudness, after all Metallica is featured on it. The piano pounding reminds me of the music from Eyes Wide Shut. I much prefer my Christmas music quiet and soft."

Trans Siberian Orchestra -- Carol of the Bells

Again, I know how it is searching for songs that radio DJs don't tell you the artist and title to and wish I could have seen this post earlier.

I hope I have been of some help.

Ricardo (mmpact2@hotmail.com)