Amy Paulette "Amii" Stewart (born January 29, 1956) is an American disco and soul singer who found prominence with her 1979 U.S.

Billboard number 1 hit cover of Eddie Floyd's song "Knock on Wood", often considered a classic of the disco genre.

Stewart's first single release, a disco cover version of the 1966 Eddie Floyd composition "Knock on Wood", reached number one of the U.S.

A new generation of musicians and fans, tending to idealise authenticity and purity, rejected disco as artificial, mindless and consumerist.

Not declaring disco dead, the UK, for example, was left with a somewhat controverse[definition needed] culture, that fed cynicism.

In the 1998 movie 54, actress/singer Mary Griffin portrayed Stewart, performing the song "Knock on Wood", at the famed discothèque Studio 54 in New York City.

In 2000, Stewart toured Italy, playing the part of Mary Magdalene, in a revival of the rock opera Jesus Christ Superstar.

In 2004, Stewart published the studio album Lady Day, containing sixteen cast recordings of the 2003 musical Lady Day, based on the life of American jazz and blues singer Billie Holiday and produced and co-written by Stewart and theater director Massimo Romeo Piparo.

In 2006, she recorded the charity single "Love Song" for UNICEF in four different languages, once again returning to work with Ennio Morricone.

In 2006, Stewart and long-time friend and collaborator Ennio Morricone released the 5 track single "Love Song", sung in English, Italian, French, Spanish as well as a multilingual version.

In 2014, she took part in the prime-time Rai TV show La Pista as teamleader of the "Virality" dance troupe.

[4] UNICEF Italia introduces her in a mutually cordial tone, pointing out: "The one between Amii Stewart and Italy is a beautiful love story" and that she "has been 'adopted' by our country and has certainly returned the affection received".