Percussion [Collinga] – Eddie 'Bongo' Brown*Written-By – Stevie Wonder

Written-By – Calvin Hardaway, Stevie Wonder

Written-By – Shatema Byrd, Stevie Wonder

Backing Vocals – Artece May, Josie James, Michael Gray , Shirley BrewerBass – Nathan WattsDrums – Raymond PoundsKeyboards – Gregory Phillinganes*Lead Guitar – Mike Sembello*Rhythm Guitar – Ben BridgesWritten-By – Stevie Wonder

Alto Saxophone – Hank ReddBass – Nathan WattsDrums – Raymond PoundsLead Guitar – Mike Sembello*Rhythm Guitar – Ben BridgesTenor Saxophone – Trevor LawrenceTrumpet – Raymond Maldonado*, Steve MadaioWritten-By – Stevie Wonder

Alto Saxophone – Hank ReddBacking Vocals [Background] – Renee HardawayBass – Nathan WattsDrums – Raymond PoundsTenor Saxophone – Trevor LawrenceTrumpet – Raymond Maldonado*, Steve MadaioWritten-By – Stevie Wonder

Written-By – Stevie Wonder

Backing Vocals – Hare Krishna, West Angeles Church Of God ChoirPercussion – Bobbye Hall, Raymond Maldonado*Written-By – Stevie Wonder

Organ – Ronnie FosterPercussion – Nastee Latimer*Rhythm Guitar – Ben BridgesWritten-By – Stevie Wonder

Alto Saxophone – Hank ReddBacking Vocals – Charity McCrary, Deniece Williams, Linda McCrary, Linda Lawrence*, Madelaine 'Gypsy' Jones, Mary Lee Whitney, Minnie Riperton, Sundray Tucker, Syreeta Wright, Terry HendricksLead Guitar – Mike Sembello*Vocals [Reply] – Shirley BrewerWritten-By – Stevie Wonder

Backing Vocals – Artece May, Brenda Barrett, Carole Cole, Colleen Carleton, Dave Henson*, Edna Orso, Josette Valentino, Nelson Hayes, Shirley Brewer, Tucker*Keyboards – Gregory Phillinganes*Written-By – Stevie Wonder

Backing Vocals – Susaye Green*Keyboards – Gregory Phillinganes*Written-By – Stevie Wonder

Alto Saxophone, Tenor Saxophone – Hank ReddTrombone – George Bohanon, Glen Ferris*Trumpet – Steve MadaioVoice [Verbal Replies] – Al Fann Theatrical Ensemble, Harlem, N.Y.Written-By – Stevie Wonder

Percussion [Background] – Amale Mathews, Charles Brewer, John Fischbach, Josette Valentino, Marietta Waters, Nathan Watts, Nelson Hayes, Renee Hardaway, Shirley BrewerTranslated By [Spanish] – Raymond Maldonado*Translated By [Zulu] – Thoko Mdalose HallWritten-By – Stevie Wonder

Harp – Dorothy AshbyWritten-By – Stevie Wonder

Backing Vocals – Mary Lee WhitneyBass – Nathan WattsDrums – Greg BrownGuitar – Dean ParksHandclaps [Background] – Dave Henson*, Herbie Hancock, Josette Valentino, Nathan Watts, Stevie Wonder, Yolanda SimmonsKeyboards – Herbie HancockWritten-By – Stevie Wonder

Alto Saxophone – Hank ReddBacking Vocals – George Benson, Josie James, Stevie WonderBass – Nathan WattsFlute – Bobbi HumphreyGuitar – George BensonPercussion – Nathan Alford, Jr.Tenor Saxophone – Trevor LawrenceTimbales – Carmello Hungria Garcia*Trumpet – Raymond Maldonado*, Steve MadaioWritten-By – Stevie Wonder

Keyboards – Gregory Phillinganes*Lead Guitar – Mike Sembello*Rhythm Guitar – Ben BridgesWritten-By – Mike Sembello*, Stevie Wonder

Bass – Nathan WattsSaxophone – Jim HornSteel Guitar – Peter "Sneaky Pete" Kleinow*Written-By – Stevie Wonder

Backing Vocals – Carolyn DennisLead Guitar – W. G. 'Snuffy' Walden*Rhythm Guitar – Ben Bridges, Mike Sembello*Written-By – Stevie Wonder

Bass – Nathan WattsWritten-By – Stevie Wonder