Shanadoo (Japanese: シャナドゥー, Hepburn: Shanadū) were a Japanese dance and pop girl group. Produced in Germany and Japan, the band consisted of four members, lead singer Marina Kakitsu, along with Chika Takagi, Manami Fuku and Junko Fukuda. They were signed to Icezone Music and Avex.

Source: Wikipedia (https://en.wikipedia.org/wiki/Shanadoo)