南方之星
Kuwata's wife, Yuko Hara, is also a member of the Southern All Stars. She is a vocalist and plays keyboards. The two met while in college, where they were in the same circle of musicians.　They married in 1982, after the success of the band's single Chako no Kaiganmonogatari, and invited 3000 fans of the band to their wedding reception. They share a love of the blues and have two sons together.