The crowd places their hands over their hearts during

The crowd places their hands over their hearts during a performance of the United States national anthem by the Air Force Tops in Blue at the Talkeetna Theater on Joint Base Elmendorf-Richardson, Alaska, Nov. 1, 2015. Tops in Blue’s 2015 tour takes them throughout the United States and more than 20 countries with about 75 performances showcasing patriotic music and top-of-the-charts songs. The team consists of active-duty Airmen selected to perform around the world. (U.S. Air Force photo/Airman 1st Class Christopher R. Morales)