Hyung-don and Dae-joon's Hitmaker is a 2014 South Korean variety television series presented by South Korean producer duo Jeong Hyeong-don and Defconn. It first aired on MBC Every1 on Tuesday at 6:00 pm KST beginning July 29, 2014. It ran for two seasons in 2014 and 2015, documenting the formation and debut processes of their first boy group Big Byung and their first girl group Chamsonyeo.