Current Members of ONE OK ROCK

ONE OK ROCK is composed of four core members, each with a unique musical identity and role in shaping the band's global success. From songwriting and instrumentation to live performances, these artists are the creative force behind the band's evolving sound.

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  Takahiro "Taka" MoriuchiLead vocals (2005–present)

  The voice of ONE OK ROCK, Taka delivers emotionally charged vocals with power and range in both Japanese and English. As the main lyricist, his introspective writing and dynamic performances are central to the band's identity.

• 
  Toru YamashitaLead guitar, rhythm guitar, backing vocals (2005–present)

  Founder and guitarist, Toru envisioned the band's formation and has led it creatively from the start. His guitar work blends melodic hooks with heavy riffs, bridging J-rock and Western rock influences.

• 
  Ryota KohamaBass, backing vocals (2005–present)

  Ryota's aggressive and expressive basslines provide the rhythmic foundation of ONE OK ROCK's music. A former dancer, he brings physical intensity and movement to the band's live shows.

• 
  Tomoya KankiDrums, percussion, backing vocals (2007–present)

  Tomoya joined before the band's major debut and has remained their drummer ever since. Known for his precise, high-energy drumming and on-stage charisma, he also contributes backing vocals and arrangements.

Together, they form the heart of ONE OK ROCK's modern lineup, combining technical musicianship with raw emotion and cross-genre versatility.

Former Members

Before reaching their current formation, ONE OK ROCK experienced a few early lineup changes:

• Yu KoyanagiDrums (2005–2006)
• Alexander "Alex" Reimon OnizawaGuitar (2005–2009)

Yu left the band prior to their major debut, and Alex departed after the release of Kanjō Effect. Their early contributions remain part of the band's foundation.

Timeline of Member Participation

The timeline below outlines the history of ONE OK ROCK's band members — from their original lineup in 2005 to the current four-member formation. It shows when each member joined, how the lineup changed over time, and who contributed during key phases in the band's evolution. This visual summary offers fans a quick look at the group's internal history and long-term stability.

The People Behind the Sound - ONE OK ROCK Collaborators

ONE OK ROCK's music has also been shaped by a wide range of collaborators over the years — including producers, songwriters, and featured artists from Japan and abroad.

From Ed Sheeran and Avril Lavigne to Japanese talents like Satoru Hiraide and Soma Genda, these collaborators have helped the band evolve and expand their global reach.