Get ready because you’re in for a musical treat. What started with a single cellist on the floor of the National Air and Space museum gallery quickly turned into a full-blown performance with no less than 120 exquisite musicians onboard. Instrumentalists streamed into the gallery from behind airplanes and space capsules while vocalists burst into song from the Museum’s second floor balcony. It’s how the U.S. Air Force Band surprised unsuspecting museum visitors with its first-ever flash mob, and the result is absolutely breathtaking. The four-minute performance that featured an original arrangement of “Jesu, Joy of Man’s Desiring/Joy to the World” left bystanders in complete awe!