Cast
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.
Taeyeon (Acting)
Lee Yong-jin (Acting)
Hyolyn (Acting)
Min Young (Acting)
Yu Jeong (Acting)
Eun Ji (Acting)
Lee Yuna (Acting)
Eunha (Acting)
SinB (Acting)
Umji (Acting)
Seola (Acting)
Bona (Acting)
Exy (Acting)
Soobin (Acting)
Luda (Acting)
Son Ju-yeon (Acting)
Yeoreum (Acting)
Dayoung (Acting)
Yeonjung (Acting)
HaSeul (Acting)
JinSoul (Acting)
HyunJin (Acting)
Choerry (Acting)
Go Won (Acting)
Kim Lip (Acting)
YeoJin (Acting)
Yves (Acting)
HeeJin (Acting)
CHUU (Acting)
HyeJu (Acting)
ViVi (Acting)
Choi Yu-jin (Acting)
Sakamoto Mashiro (Acting)
Shen Xiaoting (Acting)
Kim Chae-hyun (Acting)
Kim Dayeon (Acting)
Ezaki Hikaru (Acting)
Huening Bahiyyih (Acting)
Seo Young-eun (Acting)
Kang Ye-seo (Acting)
21 February 2020
19 September 2005
15 July 2016
25 July 2019
20 January 2008
17 September 2021
15 March 2019
26 March 2005
27 March 2005
15 January 2023
21 August 2022
5 October 2011
6 May 2019
17 April 2011
4 December 2011
23 October 2020
16 June 2019
9 June 2021
31 October 2010
19 February 2017
29 August 2019