I can think of a million of them, and I'll share a few as this thread goes on.
I'd like you guys to do the same.
If you'll link up the video on YouTube, that'd be awesome.

Here's my first submission, I just found this recently and I really like the song and the video both.
Carol of the Bells (for 12 cellos) - ThePianoGuys

Another cool thing...
Trans Siberian Orchestra is here in Cleveland on December 26th.
Man, I'd love to go see that show, but I think we already have plans that day.
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Love their music first exposure was their rendition of an AC/DC classic
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Here's one of my recent favorites. Straight No Chaser: The 12 Days of Christmas (200…: http://youtu.be/2kYEK-pxs_A
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Adult discretion advised:-)

https://www.youtube.com/watch?v=GQEY...has_verified=1
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Hands down, John Berry - O Holy Night. Gives me goosebumps.

https://www.youtube.com/watch?v=zq9c4C2573o
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My fav Christmas song

https://www.youtube.com/watch?v=2Dec9Jb_Ac4
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https://www.youtube.com/watch?v=oWsZQgp4tq0
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Straight No Chaser is one of my favorite groups. Have their albums / videos. The 12 days is one of the best.

What's Xmas without White Christmas by the Drifters

https://www.youtube.com/watch?v=LVwxkMtIBEM

And Bailey the Unknown Reindeer always makes me smile

https://www.youtube.com/watch?v=0sUL0KCIc48
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Oh yeah, the entirety of the Nat King Cole Christmas Album

https://www.youtube.com/watch?v=I5s8...yPHkVFfaEv6Rrf

This is one that will be on the loop for Xmas day.
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https://www.youtube.com/watch?v=CjaPXihbORk

Yep.
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Eric Idle has a pretty good Christmas song.
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Hands down Johnny Mathis...Little Drummer Boy

https://www.youtube.com/watch?v=s7u0idCI1Z4
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It ain't Christmas 'til you hear The Pouges Fairytale of New York

https://www.youtube.com/watch?v=j9jbdgZidu8

The six part The Story Of...Fairytale of New York - The Pogues is interesting.
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What would Christmas be without The Dropkick Murphy's????

http://youtu.be/qTx-sdR6Yzk
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http://youtu.be/8u_c1oyaClU
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This is one of my favorites

http://www.youtube.com/watch?v=CRW2p...e_gdata_player
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Goosebumps? No.....but I got chills. Wonderful rendition.
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