Katseye is a Japanese rock band formed in the late 1990s, associated with the visual kei movement and known for blending alternative rock, hard rock and metal influences. Active primarily in the 2000s, the group combined melodic songwriting with heavier guitar-driven arrangements and theatrical visual presentation characteristic of visual kei acts. Their music typically features expressive vocal lines, prominent guitar riffs and dynamics alternating between aggressive and melodic passages. Katseye participated in the independent Japanese rock scene, releasing singles and albums and performing live shows that emphasized both musical intensity and visual style.