Ai Shinozaki will be releasing a new song titled "Hikari" from her upcoming solo album in December, accompanied by a 48-page photobook of the same name being released on November 6th. The photobook documents Shinozaki's journey in New York as a solo artist and features sample images. It has a concept of growth to match the mature sound of the slow song. A special code in the photobook can be used to download the song, expiring on May 5th, 2016.