Marni Nixon has passed away at 86. You might not know her name, but you’ve probably heard her voice. She “ghost sang” for Audrey Hepburn in My Fair Lady, Natalie Wood in West Side Story and Deborah Kerr in The King and I, among others.

She also performed on Broadway and in opera houses, hosted an Emmy Award-winning children’s television show and was a well-regarded singing teacher in New York.