ON/OFF is a Japanese J-pop vocal duo formed in 2001 by Naoya Sakamoto and Kazuya Sakamoto. Working in the Japanese pop and anison space, the pair is known for polished two-part harmonies, dramatic melodies, and a sound that blends J-pop with pop-rock energy. Their releases on Defstar Records helped establish ON/OFF as a recognizable name for listeners who follow anime theme songs and Japanese duo acts.
The duo’s appeal comes from music that is melodic, performance-focused, and built around memorable hooks, which makes it a natural fit for anime openings and endings. ON/OFF also stands out for balancing accessible pop songwriting with the emotional tone often associated with anime music. For fans searching for a Japanese band connected to anime, ON/OFF remains a clear example of how J-pop artists can sit at the center of the broader anime music scene while keeping a distinct identity.
