After the show,[upper-alpha 1] Jae-hwan became a trainee under The Music Works and was selected to be one of the four members of ShelRock, a "hybrid rock" band produced by singer Baek Ji-young.[5][upper-alpha 2] The band frequently busked on the streets of Hongdae and held guerilla performances at different high schools around Seoul to promote the band prior to their debut.[6][7] They even made an appearance on Yang Song E's music video for her debut single "Smiling Goodbye".[8] Unfortunately, in August 2015, debut plants fell through, and ShelRock disbanded.[1][9] Jae-hwan eventually left The Music Works.[1]