Marillion just released Carol of the Bells as a single. You can buy it on iTunes or Amazon. (I've linked to the USA version--you'll need to go to your local site.) Please do go and buy a copy: the money is going to a very good cause.
And go to Marillion.com for a better way of life!
For other Christmas (or "holiday", if you prefer) recordings, see http://alison-toon.blogspot.com/2013/12/trace-adkins-kings-gift-christma-carols.html. And maybe check out Rob Halford's Winter Songs while you're at it too.