High-energy J-pop with a theatrical soul. Percussive acoustic guitar meets big-band brass for a sound that is relentlessly bright, rhythmic, and undeniably fun.
Listening to Masayoshi Oishi is like being the protagonist of a high-budget musical that takes place in a neon-lit Tokyo. His sound is a masterclass in 'happy' music that doesn't sacrifice technical sophistication. It is built on a foundation of incredible acoustic guitar skill, often using the body of the instrument as a drum, layered with punchy brass sections and soaring, crystal-clear vocals.
What truly sets him apart is his theatricality. He doesn't just sing; he performs with a wink and a smile that translates perfectly through the speakers. Whether he is leaning into funky, syncopated rhythms or massive, orchestral pop choruses, there is a sense of wit and playfulness in every arrangement. It is music that feels physically incapable of being gloomy.
Start with 'Kimi Ja Nakya Dame Mitai' to hear his signature blend of funk-pop and percussive guitar. From there, explore his 'Kariuta' albums to see how he reimagines songs he wrote for others, showcasing his versatility as both a songwriter and a top-tier vocalist.
Masayoshi Ōishi (大石 昌良, Ōishi Masayoshi; born January 5, 1980) is a Japanese musician. His professional music career began in 2001 as vocalist of the band Sound Schedule. Following the band's disbandment in 2006, he began a solo career, releasing his debut single "Honoka Terasu" in 2008. Sound Schedule reunited in 2011, with Ōishi returning as the band's vocalist. Ōishi is also vocalist of the musical group OxT, led by composer Tom Hack. In 2014, Ōishi's song "Kimi Ja Nakya Dame Mitai" was used as the opening theme to the anime series Monthly Girls' Nozaki-kun, and in 2018, his song "Otomodachi Film" was used as the opening theme to the anime series Tada Never Falls in Love. In 2023 his song "Megane Go Round" was used as the ending theme to the anime Suki na Ko ga Megane o Wasureta. He has also written songs for other artists, such as "Yōkoso Japari Park e" which was used as the opening theme to the anime series Kemono Friends.
Shares falsetto, belting, harmonized (vocal style); playful, energetic, confident (moods)

Shares maximalist, studio polished, orchestral arrangement (production style); joyful, playful, energetic (moods)
Shares joyful, playful, energetic (moods); falsetto, belting, harmonized (vocal style)

Shares falsetto, belting, harmonized (vocal style); maximalist, studio polished, orchestral arrangement (production style)
Shares joyful, playful, energetic (moods); maximalist, studio polished, orchestral arrangement (production style)
Shares joyful, playful, energetic (moods); urban night, festival, rooftop (atmosphere)
Shares joyful, playful, energetic (moods); falsetto, belting, harmonized (vocal style)
Shares falsetto, belting, harmonized (vocal style); playful, energetic, confident (moods)
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