<Li> Philip Bailey of Earth, Wind & Fire sang the song during their joint concerts with Chicago in 2004 - 2006 . This version was included in the Love Songs album by Chicago . </Li> <Ul> <Li> Daft Punk used a sample from the Viola Wills 1981 cover of the song for their track "Fresh", released on the 1997 album Homework . </Li> <Li> A sample of the song is used by British electronica duo Lemon Jelly on the "Nice Weather For Ducks" B - side "Soft" (2003). </Li> </Ul> <Li> Daft Punk used a sample from the Viola Wills 1981 cover of the song for their track "Fresh", released on the 1997 album Homework . </Li> <Li> A sample of the song is used by British electronica duo Lemon Jelly on the "Nice Weather For Ducks" B - side "Soft" (2003). </Li>

Who sang 'if you leave me now'