Is this dancing video the 'sex tape' which got Kim Jong-un's ex-girlfriend Hyon Song-wol shot? A VIDEO of three Korean women dancing in leotards is rumoured to be the "sex tape" Kim Jong-Un used to justify the execution of his ex-girlfriend. The seemingly innocuous clip shows the trio dancing to a version of Elvis Presley's Aloha Oe in cowboy hats and tasselled skirts, The Daily Mail reports. But reports from China suggest that it was this video that led to the execution of Hyon Song-wol and 11 other entertainers last month. South Korean media reported last week that Hyon had been killed by machine gun fire amid claims that she had been appearing in pornographic videos. Twelve singers, musicians and dancers from two pop groups are said to have been executed on August 20. Video which purportedly shows Hyon Song-ul dancing in a leotard has been sugegsted as the "sex tape" which led to her execution, along with 11 other musicians. Pic: via Youku They were accused of making videos of themselves performing sex acts and then selling the recordings. The isolated and secretive state has not commented and reports are almost impossible to verify. A user on China's video-sharing website YouKu uploaded the video of the dancing trio and said it was the supposed 'sex tape', reported The Daily Dot. China's chnqiang news website said one of the dancers was Hyon. Because Kim's wife, Ri Sol-ju, was once a member of the same group as the executed singer, North Korea analysts suggested that she might have given her consent to the execution. The ex-girlfriend of North Korean leader Kim Jong-un was among several performers put to death on pornography allegations, a South Korean newspaper reports. Fuelling the speculation, there have been rumours that her husband was still seeing Hyon. North Korea has very little contact with the outside world and it is unlikely that the reason for the execution will ever be confirmed. But Professor Toshimitsu Shigemura, a Japanese expert on Korean affairs, tsaid it was "simply not believable" the entertainers were executed for making pornography, as they could simply have been made to "disappear" in the prison system. "As Kim's wife once belonged to the same group, it is possible that these executions are more about Kim's wife," he said. Another theory is the whole story is a fabrication, a calculated move on the part of Kim control his subjects through fear. Kim Jong-un applauds his former girlfriend Hyun Song-wol as she sings during a concert in Pyongyang. Hyun Song-wol was one of 12 musicians shot by firing squad. Randall Baran-Chong, who runs a nonprofit advocacy group for North Koreans in Toronto, told CBC News: "They like to spread rumours to act as a deterrent. North Korea is based on these myths and legends. ... They're a great storytelling culture. Read more at the Daily Mail