Kana Hanazawa is a Japanese singer who began her music career following the success of character songs she performed for anime series in which she appeared. Her debut single, Hoshizora Destination, was released on April 25, 2012, under the Aniplex label of Sony Music Entertainment Japan. Her musical style has been categorized as J-pop, anison (anime song), and dream pop. Hanazawa has released several singles, including Hatsukoi no Oto on July 18, 2012, Happy Endings on October 24, 2012, which was used as the ending theme for the anime Zetsuen no Tempest, and Silent Snow on January 16, 2013. Her first album, Claire, was released on February 20, 2013, followed by her second album, 25, on February 26, 2014, and Blue Avenue in April 2015. She moved to the Sacra Music record label under Sony Music Entertainment Japan in April 2017. Later singles include Daijoubu, released on July 25, 2018, which served as the ending theme for Layton Mystery Detective Agency: Kat's Mystery-Solving Files. In October 2024, Hanazawa released her seventh album, Tsuioku to Yubisaki, celebrating the 20th anniversary of her debut. This album was produced with a team including Katsutoshi Kitagawa of ROUND TABLE, who has worked with her since the beginning of her musical career. Her music is frequently tied to her anime work, with several songs serving as theme songs for series in which she has performed.

For Yuuichi Nakamura, no information is available on an independent career as a music artist or creator.

As a duo, Kana Hanazawa and Yuuichi Nakamura are credited together for the song Shokuzai no Serenade, which appears as an ending theme for the anime series Ore no Imouto ga Konna ni Kawaii Wake ga Nai Specials.