TWICE consists of 9 members. The band debuted on October 20, 2015, under JYP Entertainment. Members: Im Nayeon/Nayeon Yoo Kyung Wan/Jeongyeon Hirai Momo/Momo Minatozoki Sana/Sana Park Jisoo/Jihyo Myoui Mina/Mina Kim Dahyun/Dahyun Son Chayeong/Chaeyeong Chou Tzuyu/Tzuyu