Happiness! Happy Magical♪

is a song by Hello, Happy World!

It is the coupling track of their first single, Egao no Orchestra!, which was released on August 2, 2017.

It can be unlocked in BanG Dream! Girls Band Party! by finishing Chapter 18 of Hello, Happy World!'s First Band Story.

It was also one of the challenge songs for the event Do It Ourselves!!

It was written by Oda Asuka, and composed and arranged by Fujima Hitoshi.