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    Kroi

    Kroi

    Japan flagJapan

    Funky rhythms meet J-rock intensity

    Tokyo, Japan·Est. February 2018·Pony Canyon

    5

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    About

    As of late 2026, Kroi stands as an active force in the Japanese music industry, known for their unique fusion of funk, soul, and rock. The five-member group operates out of Tokyo and is signed to the IRORI Records label under Pony Canyon. They have successfully transitioned from their independent origins to becoming a major label act, gaining recognition for tracks like "SPIN" and their collaboration "Kinetic." Their current era is defined by a polished yet energetic sound that appeals to both anime fans and international funk enthusiasts.

    The band's identity is rooted in their live performance capabilities. Unlike many idol groups, they rely on genuine instrumental chemistry rather than choreographed routines. Leo Uchida leads the group not just vocally but also as the primary lyricist and stage MC, bridging the gap between traditional rock frontmanship and the interactive style often seen in J-pop acts. Their recent work demonstrates a maturity in songwriting that balances complex time signatures with catchy hooks, setting them apart from generic rock bands.

    Formation Story

    The story of Kroi began in February 2018 when the future members met through the local music scenes in Tokyo. They did not form through a televised audition or a talent agency search; instead, they came together organically based on shared musical chemistry. Each member brought a distinct background to the table, united by a desire to create a sound that bridged the gap between live instrumentation and modern production techniques. They started playing small venues in Shibuya and Shimokitazawa, honing their craft in intimate settings where they could test their funky arrangements and build a loyal local following.

    After years of grinding on the indie circuit, the band caught the attention of Pony Canyon's IRORI Records division. This imprint was chosen specifically because it supported alternative and indie-leaning acts while providing substantial marketing resources. Their official major label debut arrived in 2021, marking a pivotal shift from independent releases to mainstream distribution. The transition allowed them to refine their sound, incorporating more polished production elements while retaining the raw energy that defined their early performances. Their journey from underground clubs to securing a prestigious anime theme slot illustrates a steady rise built on talent and consistency rather than manufactured hype.

    Members

    L

    Leo Uchida

    内田怜央

    LeaderLead VocalistGuitaristMCPercussionist

    Frontman

    Y

    Yuki Hasebe

    長谷部優希

    Guitarist

    Guitar

    M

    Masanori Seki

    関雅徳

    Bassist

    Bass

    D

    Daiki Chiba

    千葉大貴

    KeyboardistSynthesizer

    Keys

    H

    Hidetomo Masuda

    増田秀友

    Drummer

    Drums

    Sub-Units

    Kroi x Incognito (Collaboration) (2026)

    Kroi members + Bluey

    Musical Style

    Kroi's sonic identity is best described as a funky blend of J-pop, rock, and soul. While often categorized broadly as a rock act, their music incorporates significant elements of disco, jazz, and R&B. This approach distinguishes them from traditional guitar-centric rock bands that might focus solely on distortion and power chords. Instead, the group prioritizes rhythmic precision and groove, with bassist Masanori Seki and drummer Hidetomo Masuda laying down intricate patterns that drive the songs forward.

    Their evolution has been marked by three distinct phases. During their independent era from 2018 to 2020, the sound was raw and guitar-driven, emphasizing high-energy live performances. Upon signing with Pony Canyon in 2021, they adopted a more polished production style, adding R&B vocal runs and hip-hop beats to make their tracks radio-friendly without losing their live-band integrity. By 2025 and 2026, the group expanded into global territories, collaborating with British funk legends Incognito on "Kinetic" and delivering the syncopated energy of "SPIN" for JoJo's Bizarre Adventure. These recent works showcase a deliberate expansion into complex time signatures and catchy hooks that appeal to a diverse international audience.

    Discography

    TitleYear
    SPIN2026
    Kinetic (with Incognito)2026
    Various Singles2024
    Various Singles2023
    Self-Titled Debut EP2021

    Tours

    Acoustic Live 2025

    2025 · Multiple dates shows

    Live Circuit

    2024 · Tokyo venues shows

    Cultural Impact

    Kroi has carved out a significant space in the modern Japanese music landscape by successfully merging Western funk and soul aesthetics with J-pop sensibilities. Their selection to perform the opening theme for the Steel Ball Run arc of JoJo's Bizarre Adventure brought their unique sound to a massive global audience familiar with the franchise. This milestone highlights their ability to transcend genre boundaries and connect with fans who might not typically follow Japanese rock bands.

    Their collaboration with the legendary British funk band Incognito represents a diplomatic bridge between the Japanese and British funk communities. The track "Kinetic" garnered significant attention in both countries, showcasing the global reach of the IRORI Records roster. Critics cite Kroi as a key example of the new wave of Japanese acts that refuse to be confined by rigid genre definitions, influencing peers to incorporate more diverse rhythms into their own work.

    Fandom Culture

    While specific details regarding the official fandom name, lightstick design, and fan color are not explicitly detailed in public records, the existence of official merchandise and active social media engagement suggests a dedicated, organic fanbase. Fans value the band's "live" authenticity and the genuine connection they share during concerts. The community actively supports the group through streaming milestones, with "SPIN" reaching one million streams in just 48 hours, demonstrating the collective power of their listeners. Merchandise such as the Reflector Tee indicates a strong market for physical goods among supporters who appreciate the band's aesthetic.

    Awards & Accolades

    View 1 records, honours and achievements

    Milestones

    2026

    Released "SPIN" as the opening theme for JoJo's Bizarre Adventure: Steel Ball Run

    2026

    Released "Kinetic" in collaboration with Incognito

    2021

    Major label debut with Pony Canyon's IRORI Records

    2018

    Group formed in Tokyo

    Fame & Fandom (iFAMOUS Rankings)

    Trivia

    The name "Kroi" is written in katakana as クロイ, which phonetically resembles the word "kuroi" (black), though the band has not officially confirmed a deep symbolic meaning beyond the sound., Leo Uchida serves as the MC during live shows, engaging directly with the crowd in a style more common in J-pop idol groups, highlighting the band's hybrid nature., The collaboration with Incognito stemmed from mutual admiration in the funk genre, leading to a spontaneous session in London where the track "Kinetic" was born., Despite being classified as a rock band, Kroi frequently incorporates synthesizers and electronic textures into their arrangements, particularly in their later discography., Their single "SPIN" achieved viral success on YouTube, with the music video gaining traction quickly after its release in September 2026.

    Keywords

    Japanese rock bandfunksoulJoJo's Bizarre AdventureIncognitoPony CanyonIRORI Records

    Sources

    Quick Facts

    Origin
    Tokyo, Japan
    Genres
    J-pop, Rock, Funk, Soul, R&B
    Status
    Active
    Label
    IRORI Records / Pony Canyon
    Monthly Listeners
    529.4K (Spotify)

    Group Info

    Formed
    February 2018
    Debut
    2021-05-15
    Debut Song
    Self-Titled Debut EP
    Origin
    Tokyo, Japan
    Company
    Pony Canyon
    Label
    IRORI Records
    Status
    Active

    Also Known As

    クロイ

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