Lee Dae Hwi

In 2017, Daehwi participated in the second season of Mnet's survival television show, Produce 101, along with other four trainees from his agency, Brand New Music. Him and Park Woo Jin were the only one to made it to the final line up, ranking 3rd and 6th respectively, becoming members of the boy group Wanna One. On August 7, 2017, he debuted in Wanna One with the mini album, 1X1=1 (To Be One), and its title track, "Energetic".

After the disbandment of Wanna One on January 27, 2019, Daehwi was revealed as a member of Brand New Music's new boy group, AB6IX, which consisted of all four trainees of Produce 101 and another trainee from the agency. The group debuted on May 22, 2019 with the mini album B:Complete and its title track, "Breathe". Before their official debut, a performance video of the track "Hollywood" was released on April 25, 2019.