Dokidoki SING OUT!

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

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

The song is written by Nakamura Kou, and arranged and composed by Fujima Hitoshi.

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♪