What makes Chameleon Army by Pink Lady notable?

'Chameleon Army' is significant for its commercial success, reaching high positions on Japanese charts and establishing Pink Lady as a prominent act in J-pop. The album's title track became a cultural phenomenon, contributing to the rise of disco influences in Japanese pop music during the late 1970s. Released on December 5, 1978, 'Chameleon Army' was Pink Lady's debut album, marking their entry into the music industry after gaining popularity with their energetic performances on television. This album set the stage for their subsequent success, as they transitioned from a popular duo to national icons in Japan.