OSAN AIR BASE, Republic of Korea -- U. S. Air Force Tops in Blue vocalist Airman 1st Class Jesse Cox receives a "Thank You" from Lt. Gen. Hawing, Wending, the Republic of Korea Air Force Academy commander. Tops in Blue are conducting their annual world tour celebrating "The Fly-By," a musical tribute to 60 years of proud Air Force history. (U. S. Air Force photo by Staff Sgt. Ronnie Hill)