"That's What I love About Christmas" ("Very Minty Christmas" Theme Song) from "My Little Pony: Very Minty Christmas" karaoke/instrumental version. 
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So, yeah. It's G3 song about holidays from My Little Pony. It's kind of Christmas/Holidays/Yule/Hanuka/Gravmass/whatever (even lyrics are only about Christmas... it's karaoke so sing along and record you singing about that what you're celebrating) special for everypony celebrating it (I'm not really in these religion things 'cause I'm atheist... for me it's more stuff like free time and spending time with family). 
I find this song is great (or just better than other carols ;p) and maybe also you. 
Enjoy and happy holidays

Voices are little audible in background but I can't do better... also sorry for first 4 seconds of video... maybe I ripped it incorrectly from DVD and this causes this problem. 
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Lyrics: 
Houses decked with lights
Glowing bright on frosty nights
With a wreath on every door
Drifting through the air
Is the laughter that we share
With our dearest friends once more

And that's what I love about Christmas
Hard to believe that it's almost here
That's what I love about Christmas
Have a merry one this year

Snowflakes in a swirl
Every boy and every girl
Bundled up in red and green
Tinsel on the tree
Every year we all agree
It's the grandest one we've seen

And that's what I love about Christmas
Hard to believe that it's almost here
That's what I love about Christmas
Have a very merry one this year

The Santa Claus sleigh
Will be heading our way
Down a river of stars he'll fly
Donner and Dancer
And Dasher and Prancer
Will eagerly pull the sky

A thousand bells ringing
Our silver song singing
We're joining in far and wide
The happiest faces
The warmest embraces
The feeling of joy inside

That's what I love about Christmas
Can you believe that it's almost here?
That's what I love about Christmas
Have a merry one this year

Carols in the park
Trees that twinkle in the dark
Easy smiles and great good cheer
Memories all aglow
Friends we've met so long ago
That we still hold near and dear