Backing Vocals – Alexandra Brown Evans*, Angela Winbush, Benjamin Bridges*, Charlie Collins , Earl DeRouen, Ed Brown*, Isaiah Sanders, Mary Lee Whitney Evans*, Nathan Watts, Shirley Brewer, Susaye Greene Brown*Bass – Nathan WattsDrums – Dennis DavisElectric Piano [Pianet] – Isaiah SandersGuitar – Benjamin Bridges*Percussion – Earl DeRouenSaxophone – Robert Malach*, Hank ReddTrumpet – Larry Gittens, Nolan A. Smith Jr.*Vocoder, Synthesizer – Stevie Wonder

Backing Vocals – Betty Wright, Eddie Levert, Jamil Raheem, Michael Jackson, Walter WilliamsElectric Piano [Fender Rhodes], Synthesizer [Flute], Drums, Synthesizer, Bells – Stevie WonderLyrics By – Clarence Paul, Morris Broadnax, Stevie WonderMusic By – Stevie WonderSaxophone – Hank Redd

Arranged By [Strings] – Paul RiserElectric Piano [Fender Rhodes], Synthesizer [Bass], Drums, Synthesizer, Percussion, Backing Vocals – Stevie WonderGuitar – Benjamin Bridges*

Backing Vocals – Charles K. Wilson*, Ronnie J. Wilson*, Stevie WonderBass – Nathan WattsElectric Piano [Fender Rhodes] – Isaiah SandersGuitar – Benjamin Bridges*Piano, Clavinet, Cabasa, Drums – Stevie WonderSteel Guitar – Hank Devito

Backing Vocals – SyreetaBass – Nathan WattsDrums – Dennis DavisElectric Piano [Fender Rhodes] – Isaiah SandersGuitar – Benjamin Bridges*, Rick ZunigarPercussion – Earl DeRouenPiano, Celesta, Clavinet, Harmonica – Stevie Wonder

Backing Vocals – Alexandra Brown Evans*, Angela Winbush, Marva Holcolm, Shirley BrewerBass – Nathan WattsDrums – Dennis DavisElectric Piano [Fender Rhodes], Clavinet – Stevie WonderGuitar – Benjamin Bridges*, Rick ZunigarOrgan – Isaiah SandersPercussion – Earl DeRouenSaxophone – Hank ReddTrumpet – Larry Gittens

Backing Vocals – Alexandra Brown Evans*, Melody McCully, Shirley Brewer, Windy BarnesHarpsichord, Drums, Synthesizer, Synthesizer [ARP] – Stevie WonderSaxophone – Bob MalachTrumpet – Larry Gittens

Electric Piano [Fender Rhodes], Synthesizer [Bass], Drums, Synthesizer – Stevie WonderHandclaps – Bill Wolfer, Dennis Morrison, Hank Redd, Kimberly Jackson, Stephanie Andrews, Stevie Wonder, Trevor LawrencePercussion – Earl DeRouen

Piano, Synthesizer [Bass] – Stevie Wonder

Backing Vocals – Betty Wright, Brenda M. Boyce, Emma Coleman, Josie James, LaDee Streeter, Linda Allen, Malikia Hilton, Melody McCully, Nadra Ross, Renee Hardaway, Shirley Brewer, Susaye Green Brown*, Tammy Thomes, Venetta Wiley, Windy BarnesPiano, Electric Piano [Fender Rhodes], Vocoder, Drums, Synthesizer [Bass Melodian], Synthesizer [Fairlight] – Stevie Wonder