Castle J

About

South Korean rapper who is best known for being a member of the popular K-Pop band MCND. His band is best known for their hit single released in 2020, "Top Gang." 

Before Fame

His band was formed in early 2019.

Trivia

He and his bandmates all notably have different hair colors. He is the oldest of the band members.

Family Life

His real name is Son Seong-jun.

Associated With

He has been good friends with Choi Yoo-jung.