U.S. Army Spc. Anna Leverenz, Army Training and Doctrine Command Band musician, sings “Let it Snow” during the band’s concert rehearsal at Fort Eustis, Va., Dec. 9, 2013. Days before the concert, the group ran through the entire performance to work on transitions between the songs and familiarize themselves with the overall flow of the presentation. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)