Choi Yoojung, former I.O.I member, has released her second solo single album 'Perfect Target,' which she wrote and composed entirely. The album debuted with the track 'Lemon Tang,' earning her a win on 'Show Champion,' while her former group members reunited to support her comeback. She has also shared reflections on her time on 'Produce 101' and the challenges surrounding I.O.I's 10th anniversary reunion.