Career
Koo Junhoe also appeared in the 2014 Mnet reality survival program show "MIX & MATCH" with fellow iKON members B.I, Bobby, Kim Jinhwan, Kim Donghyuk, Song Yunhyeong and Jung Chanwoo before his official debut. Koo Junhoe was first introduced to the public through his predebut appearances as the 13-year-old Michael Jackson on the Business School variety show Star King and on Business School"s survival show K-popular Star in 2011. Both teams competed in three official rounds, each consisting of a song arrangement, a dance, and an original song composition.
The winning team was determined through a public vote while the losing team was to be either disbanded or rearranged.
Koo Junhoe was one of the three Team B members that were not confirmed as official iKON members and competed against the other two original members as well as three new trainees—Jung Chanwoo, Yang Hongseok, and Jung Jinhyeong—for the remaining four positions in iKON. Koo Junhoe was the first member revealed to have made the final lineup of iKON. As of 1 October 2015, Koo Junhoe officially debuted as an iKON member and has been involved in song production, notably taking part in composing the title track "Rhythm Ta" of iKON"s debut album "Welcome Back.".
