(From the left) Russ Flynn, X Ambassadors guitarist, performs with Sam Harris, X Ambassadors lead vocalist, during the End of Summer Music Festival at Joint Base Langley-Eustis, Virginia, Sep. 1, 2018. The day after the event, both the X Ambassadors and We The Kings played another concert for individuals at Dover Air Force Base, Delaware. (U.S. Air Force photo by Senior Airman Tristan Biese)