Black Rock Shooter is a Japanese media franchise based on characters created by illustrator Ryohei Fuke, also known as Huke. It revolves around its eponymous character, a mysterious black haired girl with a blazing blue eye. The original illustration inspired a song of the same name by Supercell featuring the Vocaloid Hatsune Miku, which gained popularity on the Nico Nico Douga website.

Supercell is an 11-member Japanese pop rock band led by musician and songwriter Ryo, which formed in 2007 as a dōjin music band. The other 10 members are artists and designers who provide illustrations in album booklets and music videos. Supercell started out by making use of the Hatsune Miku Vocaloid singing synthesizer to produce vocals for songs submitted to the Nico Nico Douga video sharing website. The popularity of the songs led the band to release their independent self-titled album Supercell (2008). Supercell later signed to Sony Music Entertainment Japan and had a professional release of their Supercell album in March 2009, which was updated with more songs.