MEMBER PROFILE
Sangyeon
Leader, Main Vocalist in THE BOYZ.
Profile
Before and debut
Sangyeon trained as a vocalist and songwriter before debuting as THE BOYZ leader in 2017. He became the group’s practical center through an eleven-member era, Hwall’s departure, Road to Kingdom, Kingdom, international touring, an agency transfer, and another lineup rupture. He enlisted on March 17, 2025, which kept him out of the Stylish promotions.
Sangyeon debuted with THE BOYZ on December 6, 2017 through The First and its title track “Boy.” The original twelve-member lineup entered during a crowded generation transition and had to build recognition through frequent releases, variety content, and unusually disciplined group choreography.
THE BOYZ career
The group’s turning point came through Road to Kingdom and Kingdom: Legendary War, where elaborate stages made their performance reputation impossible to ignore. Later eras moved through “The Stealer,” “Maverick,” “Whisper,” “Roar,” “Watch It,” “Trigger,” “VVV,” and “Stylish.”
Sangyeon’s role is not static. Ten-member groups survive because members learn when to lead a section and when to make somebody else’s moment work.
Performance identity
He is the leader people notice most when he is missing. THE BOYZ can redistribute lines. Replacing the person who has spent years quietly keeping ten schedules attached to one group is harder.
The 2025 “Stylish” era used nine active performers because Sangyeon was enlisted and Ju Haknyeon had been removed from the company lineup. Read the full review here.
Current status
In 2026, nine members excluding New won a court injunction suspending their ONE HUNDRED contracts after a dispute over settlements and trust. New remained under contract by personal choice. The members said they respected that choice and would continue exploring options for the team. This profile treats THE BOYZ membership and agency contracts as separate facts.
Official links
Sources
Checked against official profiles, member accounts, Kprofiles, Kpopping, Korean entertainment coverage, and 2026 court reporting from Yonhap and Korea JoongAng Daily.