I just found an awesome version of one of my favorite Christmas songs being sung beautifully by Johnny Cash and Neil Young:
Pentatonix - Drummer Boy. My wife loves this. It is pretty amazing with their voices, harmony and the sounds they make with their mouths (the “drums”, etc.)
https://www.youtube.com/watch?v=qJ_MGWio-vc
I like the version with Bing Cosby and David Bowie:
https://www.youtube.com/watch?v=ADbJLo4x-tk
My favorite Christmas album is Keith Emerson’s Christmas Album.
Silent Night:
https://www.youtube.com/watch?v=VrjzAkXk96M
There is a cool video on youtube of an ELP concert from December 1973. They ease off of one of their prog rock songs, and Greg Lake starts singing “Silent Night”, and after a few lines the crowd is singing along. RIP Keith and Greg.