Kim Dong Jun

On January 7, 2010, he debuted as a member of ZE:A with their first single album "Nativity". On February 7, 2013, he made his debut as a member of ZE:A's first sub-unit ZE:A FIVE with their first Japanese single album "The Classic". On January 21, 2015, he debuted as a part of ZE:A's third sub-unit ZE:A J with the single album "Roulette".

On January 6, 2017, his contract with Star Empire Entertainment expired and he decided to not renew. On June 21, it was officially announced that he had left the agency and join Gold Moon Entertainment. Despite this, he was still a member of ZE:A as they went on an indefinite hiatus.