Music duo who are known having sold more than 31 million albums and singles in Japan. They released their twenty first studio album Double in 2007. In 2009, the duo disbanded to pursue solo interests and 2019 Asaka announced his permanent departure from the project.
In 1996, they sought to expand their exposure in English speaking markets. They performed live at several MTV concerts that year.
The duo was composed of Chage and Aska.