Marni Nixon (1930-2021) was an American soprano and actress known primarily for her work in film musicals and as a vocal ghost singer. She was born in Los Angeles and trained in classical music, which greatly influenced her career. Nixon is most renowned for providing the singing voice for leading actresses, notably in classic films such as "West Side Story" (1961) for Natalie Wood, "The King and I" (1956) for Deborah Kerr, and "My Fair Lady" (1964) for Audrey Hepburn. Her contributions to these iconic films helped shape the sound of American musical cinema, allowing her to bridge the gap between classical training and popular music. Despite her extensive work behind the scenes, Nixon's talent was often uncredited, leading to discussions about the recognition of artists in the film industry. In addition to her film work, Nixon performed in opera and on Broadway, showcasing her versatility across genres. Her legacy is marked by her ability to elevate the performances of others, and she is remembered as a pioneering figure who brought classical vocal artistry into mainstream entertainment. Her impact continues to resonate, highlighting the importance of vocal talent in musical theater and film.