Ayako Kawasumi (川澄 綾子, Kawasumi Ayako?, born on March 30, 1976 in Tokyo, Japan) is a Japanese voice actress and J-pop singer. She is affectionately referred to by her fellow voice actors and fans as "Ayachii (あやちー?)", "Ayasumi (あやすみ?)" and "Aya-nē (あやねえ?)". She is a skilled pianist, having practiced the piano since childhood. She composed and performed "...To You", the opening theme to Piano, and played pianists in the anime Piano and Nodame Cantabile.