Keiko Matsui (松居慶子), born in Tokyo as Keiko Doi on July 26, 1961, is a Japanese smooth jazz/new age pianist and composer whose music and sophisticated elegance have propelled her to success and established a cult following among her fans. A prolific recording artist, Matsui's career spans three decades, during which time she has released twenty CDs (in addition to various compilations) and has received international acclaim.