Cindy (26) Mayumi Yamamoto, known as Cindy (b.5th of May 1958 - d.17th Dec. 2001) was a Japanese R&B singer-songwriter and composer, perhaps best known for composing some of Miho Nakayama 's biggest hit songs. She worked with many Japanese Fusion artists throughout the '80s, and even had Stevie Wonder produce her debut album.