Description
A musical battle between 6 trending girl group acts, in order to "determine the real number one" when all 6 release their songs at the same time.
Casts:
Taeyeon
Lee Yong-jin
Hyolyn
Min Young
Yu Jeong
Eun Ji
Yu Na
Eunha
A musical battle between 6 trending girl group acts, in order to "determine the real number one" when all 6 release their songs at the same time.
