Cho Kyu-hyun, referred to as Kyuhyun, is a South Korean singer, musical theatre actor and television host. He debuted as a new member of boy group Super Junior in May 2006. Apart from his group's activities, he has established himself as a musical actor, notably through his participation in the original and Korean versions of stage musicals including The Three Musketeers, Catch Me If You Can, Moon Embracing the Sun, Singin' in the Rain, The Days, Robin Hood, Werther, Mozart!, and The Man Who Laughs. He also cast in television show including Radio Star, We Got Married, Mamma Mia, Fluttering India and in the third, fourth, seventh, and eighth seasons of New Journey to the West. He debuted as a solo artist with his debut mini album, At Gwanghwamun, on November 13, 2014, making him the first Super Junior member to debut as a solo artist.
He is one of the first four Korean artists to appear on Chinese postage stamps.