The High-Lows were a Japanese rock band formed in 1995 and centered on Hiroto Koumoto (vocals, harmonica) and Masatoshi Mashima (guitar). Blending j-rock, garage rock, and j-pop, the group built a direct, melody-driven sound that kept the focus on guitar interplay, strong hooks, and a compact band chemistry.
Alongside Koumoto and Mashima, the lineup included Sakito Shirabe on bass and Kenji Ooshima on drums, while Mikio Shirai is listed as a former keyboard player. That core made The High-Lows a frequent search target for listeners looking up the High-Lows members, and their arrangements stayed grounded in harmonica, bass, drums, and occasional keyboards rather than elaborate production. The band was associated with Universal Music LLC and disbanded in November 2005, leaving behind a catalogue that remains tied to Japan's alternative rock scene.
