Joo Bum Jin, known simply as Bumjin, is a South Korean singer-songwriter and lyricist. He is the younger brother of singer Jin Ju. He appeared on TV in 2016 when he was part of an episode of "Duet Song Festival" and was noticed by the public due to his husky voice and impressive skills. In 2018, he performed the song "Love Is" that became an OST for the MBC drama "Rich Family’s Son" and he made his official debut the following year with the single "Regret". He has released several singles and contributed with other OSTs since then.
(Source: MyDramaList)
