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(Left to right) Staff Sgt. John Raab, 1st Lt. Jerry Underwood and Capt. Erik Stohl, members of the 506th Air Expeditionary Group, performed for more than 60 Airmen and Soldiers at the Clamtina Aug. 30 at Kirkuk Regional Air Base, Iraq. The trio, known as ‘3 Krab Night,’ formed after hearing each other sing the national anthem at different ceremonies here. The acappella band sang a variety of music from classic to modern. Sergeant Raab, a Colorado Springs, Colo., native, is deployed to the northern Iraqi base from the Air Force Reserve's 302nd Civil Engineer Squadron at Peterson Air Force Base, Colo. (U.S. Air Force photo/Staff Sgt. Joshua Breckon)