U.S. Army Sgt. Megan Van Oudenaren, Training and Doctrine Command Band vocalist, and U.S. Air Force Senior Airman Emerald Payne, U.S Air Force Heritage of America Band vocalist, perform during the Constitution Day “Support and Defend” concert at Williamsburg, Va., Sept 17, 2014. The vocalists encouraged the crowd to join them in singing along with songs including “God Bless America” and “You’re A Grand Old Flag.” (U.S. Air Force photo by Airman 1st Class Kimberly Nagle/Released)