What makes Niji by L'Arc-en-Ciel notable?

'Niji' is notable for its commercial success, peaking at number one on the Oricon Singles Chart and becoming one of L'Arc-en-Ciel's signature songs. Its impact extended beyond charts, influencing the visual kei movement and leaving a lasting legacy within the genre of alternative rock in Japan. By the time 'Niji' was released in 1997, L'Arc-en-Ciel had already established themselves as a prominent force in the Japanese rock scene. This single followed their breakthrough album 'True,' which had solidified their commercial appeal, further propelling them into mainstream success. 'Niji' marked a pivotal moment as the band began to explore more diverse musical influences, setting the stage for their future evolution.