"Seishun Collection" is a song recorded by Japanese pop girl group Morning Musume. Written and produced by Tsunku, it was released on June 9, 2010 by Zetima in four editions: the normal edition and limited A, B, and C versions. The limited editions each contain a different version of the promotional video. "Seishun Collection" is the theme song for Fashionable, a musical starring Morning Musume. The b-side "Tomo" was chosen as the theme song for the 2010 Japan Expo in Paris, France, at which Morning Musume is expected to appear on July 2, 2010.