"Onna ga Medatte Naze Ikenai" is the 42nd single by Hello! Project unit Morning Musume. The single was released on February 10, 2010 with three limited edition releases as well as the normal edition– "A", "B" and "C"– all of which contained a different DVD. All four editions also contained a special card with a serial number on it, which was used in an event draw. The Single V was released on February 24, 2010. This is also the group's first single as an eight-member unit, since the graduation of seventh generation member Koharu Kusumi in late 2009.

"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.