Hyung-don and Dae-joon's Hitmaker (Korean: 형돈이와 대준이의 히트제조기; RR: Hyeongdoniwa Daejuni-ui Hiteujejogi) 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 (Korean: 빅병)^[1] and their first girl group Chamsonyeo (Korean: 참소녀). It was renewed for another season in 2016, with Season 1 and 2 host Defconn being replaced by Beast's Yong Jun-hyung.^[2] The hosts, along with N.Flying's Cha Hun, travelled to Dublin, Ireland, to stage a performance.^[3]

The name of this television reality uses a disambiguation style that does not follow WP:NCTV or WP:NCBC and needs attention.

In the first season, producer duo Jeong Hyeong-don and Defconn find members to participate in their first boy group, later named Big Byung (Korean: 빅병), using music they wrote and composed. They recruit VIXX's Hyuk and N, Got7's Jackson and BToB's Sungjae.^[1] The group then releases two singles: "Stress Come On"^[4] and "Ojingeo Doenjang" (Korean: 오징어 된장).^[5]

In the second season, Jeong Hyeong-don and Defconn find members to participate in their first girl group, later named Chamsonyeo (Korean: 참소녀), using music they wrote and composed. They recruit Kara's Youngji, After School's Lizzy, G.NA and 4minute's So-hyun.^[6][7] The group released the single "Magic Words" (Korean: 올해의 주문) on February 20.^[8]

In the third season, BEAST's Yong Jun-hyung takes over for Defconn as host.^[2] The season was filmed in Dublin, Ireland, with Hyeong-don, Jun-hyung and N.Flying's Cha Hun.^[3]