Master Sgt. Mari Uehara Washington, The United States Air Force Band Air Force Strings concertmaster, rehearses for a flash mob at the Smithsonian's National Air and Space Museum Washington, D.C., Dec. 3, 2013. The band played holiday songs to spread the word about their free upcoming holiday concerts in the National Capitol Region. Their mission is to honor those who have served, inspire American citizens to heightened patriotism and service, and positively impacts the global community on behalf of the U.S. Air Force and the United States of America. (U.S. Air Force photo by/ Airman 1st Class Nesha Humes)