After debuting in 2003, FLOW has an established reputation for hit anime works, including themes for anime “NARUTO” (GO!!!, many others), opening themes for “Code Geass: Lelouch of the Rebellion”, (COLORS, WORLD END), and the opening theme for ”Tales of Zestiria the Cross” (Kaze no Uta). They have written songs for numerous other anime works as well.
Since 2006 they have been active playing shows not only in Japan but overseas, performing over 60 live performances in 19 countries in Asia, North America, South America, Europe, and the Middle East, transcending borders as a live band. Strongly streamed, their song “Sign” for the opening of “NARUTO Shippuden” has been played over 120 million times worldwide on Spotify.
FLOW celebrated their 20th anniversary on July 2, 2022, and on November 16 released the single "Daydream Believer" in collaboration with ORANGE RANGE. In July 2023, the band's largest one-man performance, "FLOW 20th ANNIVERSARY SPECIAL LIVE 2023 ~Anime Shibari Festival~" was held at Makuhari Messe International Exhibition Hall in Japan.