KBS 2TV 'Music Bank' rehearsal was held at the KBS New Hall in Yeouido-dong, Seoul on the morning of the 3rd.
Group TWICE TZUYU poses as they move to rehearsal venue
About TZUYU
Chou Tzu-yu, known mononymously as Tzuyu, is a Taiwanese singer based in South Korea. She is the only Taiwanese member of the girl group Twice, formed by JYP Entertainment.
 Wikipedia