Kim Yong-guk is a South Korean singer and songwriter, known for his participation in the reality television show Produce 101 Season 2. He gained popularity for his vocal abilities and charming personality, which helped him stand out among the contestants. After the show, Kim Yong-guk debuted as a member of the boy group Boys24 and later pursued a solo career. He has released several singles and continues to be active in the South Korean music industry, showcasing his talent and versatility as an artist.