Born on November 21, 1979, this South Korean actor and singer gained fame as a member of the boy band Shinhwa, one of the longest-running K-pop groups. Transitioning to acting, he has appeared in various television dramas and films, showcasing his versatility. He debuted as a solo artist in 2007, further establishing his musical career. Known for his dedication and charisma, he has also participated in musical theater and television variety shows, earning respect in the entertainment industry.