K-ON! MUSIC HISTORY'S BOX is a collective CD box which contains almost every single vocalised song from the main albums which were released for the two seasons of the anime K-ON! and the attendant movie. Additionally, it contains the four "Original Soundtrack" albums, each "Character Image Song", the shorter "TV/MOVIE size Versions", the "GAME Mix Versions" of the game K-ON! Ho-Kago Live!!, which weren't published anywhere before, several artwork books and finally ticket applications for the talk event "K-ON HISTORY'S TALK", which was held on the 16th of June 2013.