Chou Tzu-yu is part of the girl group who debuted on October 20, 2015 with what EP?
Twice (band) Twice (; Japanese: トゥワイス) is a South Korean girl group formed by JYP Entertainment through the 2015 reality show "Sixteen". The group is composed of nine members: Nayeon, Jeongyeon, Momo, Sana, Jihyo, Mina, Dahyun, Chaeyoung, and Tzuyu. The group debuted on October 20, 2015 with the extended play (EP) "The Story Begins".
Cupid (band) Cupid (Hangul: 큐피트) is a Korean pop girl group that currently has four members. The group debuted on 15 April 2015 with their single album "I Feel Good", released under music label In Entertainment.