In the strictest sense, Who's That Girl isn't a Madonna album -- it's a soundtrack album to her 1987 comedy, featuring competent but uninspiring dance-pop by Club Nouveau, Scritti Politti, Coati Mundi, Michael Davidson, and Duncan Favre. Madonna has four new tracks on the record, including the number one "Who's That Girl" and the number two "Causing a Commotion." Both of the hits aren't among her finest singles -- neither song made her greatest-hits compilation, The Immaculate Collection -- making it her weakest album.