Here's some really great, uplifting Christmas performances by the United States Military!
There are many, many more. No reason not to play *moving* Christmas Music.
Navy
https://www.youtube.com/watch?v=ZL77akOifTw
https://www.youtube.com/watch?v=AfQAcu2b-OI (funny, dueling Jingle Bells)
https://www.youtube.com/watch?v=3F0ZeyF4DiQ
https://www.youtube.com/watch?v=8q3Lck1dneA (Joy to the World... Pickin')
Air Force
https://www.youtube.com/watch?v=5VH3d_x4-6k
(love these USAF flash mob videos... definitely a bucket list item, to be there LIVE)
https://www.youtube.com/watch?v=mLjLny-nXo8&spfreload=10
https://www.youtube.com/watch?v=gr4-akvoJuU
https://www.youtube.com/watch?v=gIoSga7tZPg (one of my favorites)
https://www.youtube.com/watch?v=vniBBT7nRJg&list=RDnQldA95uJi8&index=2
Army
https://www.youtube.com/watch?v=QZDttZpCj88 (amazing drumming!)
https://www.youtube.com/watch?v=bFbv_mZ3844