Ban-gnam Style: Psy and Ban Ki-moon dance at UN The United Nations chief proved he has Gangnam Style when he met South Korean rapper Psy today. Secretary General Ban Ki-moon danced along with Psy during a visit to the UN headquarters in New York. "What a big crowd you attract," he told the musician, adding: "You and I are now the most famous South Koreans in the world." Ban appeared hesitant when reporters encouraged him to dance with Psy. But his nervous giggles soon turned into a large grin as the duo bopped together with arms extended.