Twice

South Korean girl group formed by JYP Entertainment through the 2015 reality show Sixteen.

Twice includes nine members : Jihyo, Nayeon, Mina, Momo, Sana, Chaeyoung, Dahyun, Tzuyu, and jeongyeon.
They debuted on October 20, 2015 with the song Like OOH-AHH.
https://youtu.be/0rtV5esQT6I

Twice have four foreign members which are Mina, Momo, Sana (theses three are Japanese) and tzuyu who is Taiwanese. Mina was born in San Antonio, Texas but moved to japan afterwards .The rest of the members are Korean .