Lee Hyun is a South Korean singer. He debuted in 2007 as a member of the co-ed vocal group 8Eight, which disbanded in 2014. He was also a member of the disbanded vocal duo Homme from 2010 to 2018. Lee is currently signed to Big Hit Music as a solo artist. He introduced his alter ego Midnatt in March 2023, through the release of the single "Masquerade".

Bang Si-hyuk, known professionally as "Hitman" Bang, is a South Korean record producer, songwriter, and record executive. He founded the record label Big Hit Music and entertainment company Hybe Corporation both in 2005, and is chairman of the latter.