Happy! Happier! Happiest!

 is a song by Hello, Happy World! and the fifth in the artist tie-up song project that was announced during the 4.5 Anniversary Special of GARUPA Station.

It was written and composed by Maeyamada Kenichi, and arranged by Fujiwara Touta.

Video
MV (Game Size) = Expert Preview =

Trivia

 * The MV was animated Kounaien.