9001 (Ninety O One) Profile & Facts 9001 (Ninety O One) formerly known as Oyster (오이스터) is a 4 member band under Amuse Entertainment. 9001 currently consists of Wonwoo, Juwon, Ueigon and Jogon. Jese left the group in May 2021. They debuted on July 24th, 2018 with the song ‘What If We Bow’. 9001 Fandom … Continue reading 9001 (Ninety O One) Profile & Facts