Yook Sungjae is a South Korean singer and actor, best known as a member of the boy group BTOB. In addition to his group activities, he has pursued a solo career, showcasing his vocal talents through various singles and collaborations. His solo work often highlights his versatility as an artist, blending different musical styles. In 2020, Yook Sungjae released his first solo single, "Yook," which received positive feedback from fans and critics alike. He has also participated in soundtracks for dramas, further establishing his presence in the music industry. His solo endeavors continue to expand his artistic reach beyond group performances.