It was released on April 24, 2002 and sold 212,230 copies.

This single was a collaboration with comedian Ken Shimura in his Baka Tono-sama persona, and was jointly credited to Baka Tono-sama to Minimoni Hime (バカ殿様とミニモニ。姫).

A double A-side, its title tracks were both built around the interjection "Aiin!

The lyrics to "Aiin Taisō" were written by Hiroyuki Tomonaga; its music was composed by Akihiko Takashima.

Dance no Uta" was written and composed by Tsunku.