Dokidoki SING OUT!

is the character song of Toyama Kasumi. It was released on April 5, 2017.

It can be unlocked in Girls Band Party! by reaching Band Rank 2 for Poppin'Party.

It was written by Nakamura Kou, and arranged and composed by Fujima Hitoshi.

Video
Single Preview =

Chart Performance

 * On April 6, 2017, Dokidoki SING OUT! ranked 16th in the daily singles ranking in Oricon.
 * On April 17, 2017, Dokidoki SING OUT! ranked 22nd in the weekly singles ranking in Oricon.
 * The single stayed in Oricon's weekly charts for 7 weeks.

Live Performances

 * May 24, 2017: BanG Dream! 4th☆LIVE Miracle PARTY 2017!
 * February 23, 2019: Jumpin' Music♪