Lee Hyung-geun
Rapper
Stage name Marco, he was the lead rapper for the K-pop band UNB. He was previously a part of a group called HBY (Hot Blood Youth) before joining the reality show The Unit where he finished 5th to earn a spot in UNB.
He was previously a model and part of a hip hop dance team.
He surpassed 140,000 followers on Instagram. Hobbies of his included DJing, fishing and biking.
He is from South Korea.
He was joined in UNB by Oh Kwang-suk.