Southern All Stars (サザンオールスターズ), also known as SAS and Sazan, is a Japanese pop/rock band led by Kuwata Keisuke. The band is considered one of the most influential groups in Japan, being the 4th best-selling artist and having sold more than 47,083,000 copies in Japan. The band's roots trace back to 1975, when Kuwata Keisuke was part of a popular group Better Days. The group saw many changes to its name and members. It was when