Etsuko Nishio (西尾 悦子, Nishio Etsuko; born March 9, 1973 in Toyota, Aichi, Japan) is a Japanese singer, actress and model, known for her songs Ja Ja Uma ni Sasenaide and Don't mind Lay Lay Boy from the Ranma ½ anime. In 1992 she became a gravure idol, releasing several nude photobooks and videos. She also starred in a couple feature films.
Source: “Etsuko Nishio”, English Wikipedia (CC BY-SA 4.0), excerpt