Jung Hun-cheol better known by his stage name Iron (Hangul: 아이언), was a South Korean rapper. He was a contestant on Show Me the Money 3. He released his first album, Rock Bottom, on September 9, 2016. He was a former member of 대남조선힙합협동조합 (Great Southern Joseon Hip-Hop Cooperative) for short the group’s name is 대남협 (Daenamhyup). He was also a former member of BTS during Pre-Debut of the group. He released the 1st version of We Are Bullet Proof Part 1 with RM and Supreme Boi. He was born on January 8, 1992. He died January 25, 2021 just after his 29th Birthday. He has faced many legal issues.