UN Secretary General's 'Gangnam Style' U.N. Secretary-General Ban Ki-moon says he is jealous of South Korean rapper PSY. The U.N. chief joked during a meeting with the rapper that he felt overshadowed by the star, whose video has scored over half a billion views on YouTube. "I'm a bit jealous. Until two days ago someone told me I am the most famous Korean in the world. Now I have to relinquish. I have no regrets," Ban said.