Alvin and the Chipmunks song "Christmas Don't Be Late" is what came to my mine first. I love Susan Boyle's 2nd album.

Jingle Bell Rock and Winter Wonderland

Also Blue Christmas (Elvis)

"O Holy night", by Josh Groban. Just love it, and his rendition is tops.

I like Celine Dion's version of "O, Holy Night" too. The version in the theater-in-the-round with choir is superb.

Annie Lenox's "Winter Wonderland" is also a delightfully overproduced gem.

Any Christmas song by Mannheim Steamroller.

"Mary, did you know" is my favorite one. 'Silent Night' is a very close second.

I love all the old carols, some of the newer ones (like "Some Children See Him"), way too many songs to list. Instead I'll name the one that, when I hear it, is my official start of the Christmas season - "Jingle Bell Rock" by Bobby Helms.

"Oh Holy Night" by Home Free https://www.youtube.com/watch?v=CO6OZIY-lYw

David Phelps knocks "O Holy Night" out of the park. I've listened to several sing this song & he is the best. It's my favorite Christmas song. https://www.youtube.com/watch?v=ElJ0fiD0lkc

Go Tell it On The Mountain is my favorite plus the old classics