Matsuko Mawatari (馬渡 松子, Mawatari Matsuko, born December 17, 1967) is a Japanese pop singer-songwriter.
She is known for having written "Hohoemi no Bakudan" (Smile Bomb), which is the opening theme for the YuYu Hakusho anime series.
She also sang a few ending themes from the same anime, such as "Sayonara Bye Bye", "Homework ga Owaranai", and "Daydream Generation".
In the early 1990s, Mawatari Matsuko opened for the band Dreams Come True for their tour.
However, in 2012, it has been released a new album named KiseKi with the songs 1.