Seungbin

On June 22, 2021, Seungbin was revealed as a member of Future Idol Asia's first boy group Nonstop as part of the seventh installment of the 'Future Idol Debut Project' which aims to debut various idol groups throughout 2021. He was introduced late into the lineup due to several pre-debut members leaving, however, he eventually made his debut with the boy group on October 1, 2021, with the release of the digital single, "Fly Away". He left sometime before the release of "Hope Song".

On May 8, 2022, KAILAS opened their Instagram account and revealed Seungbin as a member. They presumably disbanded shortly after due to inactivity. <!