North Korean leader Kim Jong-Un (centre R) and China's Vice President Li Yuanchao (centre L) wave to the crowd during a military parade at Kim Il-Sung square marking the 60th anniversary of the Korean war armistice in Pyongyang on July 27, 2013. North Korea mounted its largest ever military parade on July 27 to mark the 60th anniversary of the armistice that ended fighting in the Korean War, displaying its long-range missiles at a ceremony presided over by leader Kim Jong-Un. AFP PHOTO / Ed Jones (Photo credit should read Ed Jones/AFP/Getty Images)

Photo by Ed Jones/AFP/Getty Images

Singer Hyon Song-wol and other performers from a well-known orchestra and light music ensemble were accused of filming themselves having sex and then selling copies of the tapes.