HELLMERRY is a Japanese rock band formed in the early 2000s, associated with the visual kei and alternative rock scenes. Emerging from Japan's independent music circuit, the group's sound combines melodic rock structures with heavier guitar-driven arrangements and occasionally theatrical vocal delivery characteristic of visual kei aesthetics. Their work typically features polished production, dynamic shifts between introspective balladry and more aggressive, up-tempo tracks, and an emphasis on melodic hooks and emotional expression. HELLMERRY has been part of Japan's broader rock landscape, performing in live venues and contributing to the visual kei movement's blend of music and visual presentation.