Kai

Jung Ki-yeol (born December 5, 1981), known professionally as Kai (카이), is a South Korean singer and musical theatre actor. He is a classically trained baritone best known in musical theatre and has starred in Korean productions of A Tale of Two Cities, The Three Musketeers, Phantom, Jekyll & Hyde and Les Misérables. Outside of musical theatre, Kai has appeared as a panelist on various singing variety shows such as King of Mask Singer and was host of the classical music show Music of the World on KBS Classic FM.