FLOW is a five-member rock band that has been active since 1998.
Rooted in mixture rock, their twin-vocal setup delivers captivating rap and harmonies!
Another essential point when introducing them is their many collaborations with anime.
They have provided theme songs for numerous anime over the years, earning immense popularity not only in the rock band scene but also in the anison (anime song) scene.
In this article, we’ll showcase a slew of masterpieces born throughout their career!
From fast-paced, cool tracks to melt-in-your-ears beautiful ballads, you won’t want to miss a single song!
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The Kings of Rock and Anison! A roundup of FLOW’s popular songs (1–10)
DAYSFLOW
This is their seventh major-label single, used as the opening theme for the TV anime Eureka Seven.
It’s a track featuring an upbeat four-on-the-floor drum groove and strings that add expansive depth to the sound.
The song is packed with experimental elements for the band, including a rap section in the interlude.
With FLOW’s signature twin-vocal harmonies adding further dimension, it’s a number that showcases the band’s evolution.
GO!!!FLOW
This is the fourth major single, chosen as the opening theme for the hugely popular anime NARUTO.
With a structure that kicks off from the chorus and instantly ramps up the energy, followed by relentless rap, a driving beat and chorus, and a melodious guitar solo, it’s packed with highlights from start to finish.
Of course, its catchy, pop-leaning melody is excellent as well, and the song amplifies the anime’s momentum, elevating the whole work.
SignFLOW
Used as the opening theme for the TV anime Naruto Shippuden and the ending theme for the original Naruto series, this is FLOW’s 18th major single.
Released with the tagline “That pain is protecting you,” it’s a heartfelt, tear-jerking anthem from FLOW.
The song is a rock tune whose powerful lyrics and vocals resonate deeply, as if giving you a supportive push forward.
It’s a track that reaffirms how well fiery messages pair with rock sound—one worth checking out even if you’re not an anime fan.
COLORSFLOW
Released with the tagline, “In 2006, the third single is an upper, tear-jerking disco!” this was the band’s 11th major single and was selected as the theme song for the TV anime Code Geass: Lelouch of the Rebellion.
With a brass-forward intro leading into a four-on-the-floor chorus, it delivers exactly what the tagline promises: a dance number imbued with a wistful melody that leaves a strong impression.
Despite its poignant tune, it’s a track that also carries a certain strength, as if giving you a gentle push forward.
New WorldFLOW
Their 35th single, which was selected as the opening theme for the TV anime Shadowverse.
It’s a song packed with FLOW’s appeal: twin-vocal harmonies, a catchy guitar riff, a bassline that gives the track a driving swell, and tight, fast-paced drums.
The chorus’s expansive melody and the contemporary alternative rock sound heighten the energy and sense of anticipation, making it a perfect fit for an anime opening.
MelosFLOW
Released in 2003, this was FLOW’s final single as an indie band.
Despite being an independent release, it was chosen as the theme song for a music TV program and became the band’s first entry into the Oricon Top 10, marking a major breakthrough for them.
Its uplifting, cheer-song-like melody and lyrics, carried by a relaxed shuffle rhythm, really resonate, making it the kind of track that raises your spirits and makes you want to throw your hands up and sing along at live shows.
Shot by love, bye-bye-byeFLOW
Their 27th major-label single, used as the opening theme for the TV anime “Samurai Flamenco.” Centered on the theme of an “anthem for grown men,” this rock tune resonates with a message of pushing forward despite inner conflict, paired with a driving sense of momentum that gives you a push from behind.
From the intense rock-sounding intro, to an off-beat A-melody with a ska feel, a melodic B-melody, and then a catchy, straightforward chorus—the dynamic structure is addictive, making it a track that lets you fully enjoy FLOW’s appeal in a single song.