fromis_9 was formed through the survival program named as Idol School. The group consists of 9 members:
1.Noh Jisun
2.Song Hayoung
3.Lee Saerom
4.Lee Chaeyoung
5.Lee Nakyung
6.Park Jiwon
7.Lee Seoyeon
8.Baek Jiheon
9.Jang Gyuri
두근두근(DKDK) Choreography ver. : https://www.youtube.com/watch?v=NFJMwZQ5_zc