 Although her singing was dubbed by Marni Nixon (qv),  Audrey Hepburn (qv)s singing does actually appear in the form of  the first verse of "Just You Wait, Henry Higgins". However, when the  song heads into the soprano range (76 seconds in), Nixon takes over  vocals. Hepburn sings the last 30 seconds of the song as well as the  brief reprise. She also sings the sing