Mass Music for the holidays, like Oh Holy Night, Green Sleeves(what child is this), etc.
I used to sing choir, I have a low Baritone voice yet can reach some pretty high (for me) notes so can pass for tenor. I still like choir music though now I only sing solo so-low you can't hear me.
They've recorded a new song, called "I Believe In Christmas (Like It Used To Be)" and proceeds from the song will be going to the Wounded Warrior Project, which gives assistance and services to those wounded while serving in the military.
The YouTube video features footage of soldiers being reunited with their family members.