I can not for the life of me pick just one song, so I will list some of my favorites. Some of them are from my show choir days, so they are kinda obscure.
1. Do You Hear What I Hear?
2. Away in a Manger
3. Issay Issay
4. Dona Nobis Pacem (The Peace Carol)
5. Michael W. Smith's version of Jingle Bells
6. White Christmas
7. The French Carol (The real name is slipping my mind and I apologize!)
8. African Noel
9. Breath of Heaven
10. Mary Did You Know?