The sixteen members that were featured in the title track were decided in the AKB48
rock-paper-scissors tournament held in September along with their position at
Nippon Budokan. The overall winner of the tournament was
Haruka Shimazaki, who sang the lead vocals for the song and took up the center position during its performances, and it is also her first solo center. The single was released in five versions: Type-A, Type-B, Type-C, Type-D, and Theater Edition. The third tracks of the DVDs that come with Types A, B, and C are
music videos for the songs that placed, respectively, first, second, and third in the recently held Music Video Request, in which fans could vote for a song to get a music video. Its music video was directed by Eiki Takahashi (also director of
Keibetsu Shiteita Aijō). It premiered on
MTV Japan. This is also the first single where
Kojima Haruna does not participate in the single's A-side track. == Track listing ==