Master Sgt. Jonathan S. McPherson, U.S. Air Force Band’s Max Impact keyboard player, plays holiday carols in the lobby of the William A. Jones III building at Joint Base Andrews, Md., Dec. 16, 2015. Max Impact played a surprise performance for the military members and civilians that work in the Jones building to spread holiday cheer. (U.S. Air Force photo by Airman 1st Class Philip Bryant/Released)