He's following in the footsteps of Seungri of the group BigBang, another South Korean pop star, who appeared in an episode of the series last January. Nichkhun's episode in particular assembles actors from across Asia, including Taiwanese singer Wu Chun, Ryosuke Yamada and Daiki Arioka from the Japanese group pop Hey! Say! Jump! and their compatriot, actress Haruna Kawaguchi