Seo In-gook is a South Korean actor and singer, born on October 23, 1987. He gained fame after winning the reality competition show Superstar K in 2009, which launched his music career. Seo In-gook is known for his versatile singing style and has released several successful albums. In addition to his music, Seo In-gook has made a name for himself in acting, starring in popular dramas such as Reply 1994 and The King’s Affection. His performances have earned him critical acclaim and a loyal fan base, showcasing his talent in both fields.