Army Singers Army vocalists perform during the Public Service Recognition Week ceremony at the Pentagon, May 4, 2016. DoD photo by Air Force Senior Master Sgt. Adrian Cadiz SHARE IMAGE: Download Image: Full Size (1.35 MB) Tags: bob work, DepSecDef Photo By: Senior Master Sgt. Adrian Cadiz VIRIN: 160504-D-DT527-366.JPG Photo Gallery