First Name: Sang Yeon
Family Name: Lee
Native name: 이상연
Nationality: South Korean
Gender: Male
Born: November 4, 1996
Lee Sang Yeon is the leader, main vocalist and dancer of the boy group The Boyz. He is a former MBK Entertainment trainee. Sang Yeon appeared in Ailee's music video for the song ''If you'' and in Melody Day's (feat. Jung Il Hoon of BTOB) music video for the song ''You seem busy''.