Musician – Stevie WonderPercussion [Collinga] – Eddie "Bongo" Brown

Musician – Stevie Wonder

Musician – Stevie Wonder

Backing Vocals – Artece May, Josie James, Michael Gray , Shirley BrewerBass – Nathan WattsDrums – Raymond PoundsKeyboards – Gregory Phillinganes*Lead Guitar – Mike Sembello*Musician – Stevie WonderRhythm Guitar – Ben Bridges

Alto Saxophone – Hank ReddBass – Nathan WattsDrums – Raymond PoundsLead Guitar – Mike Sembello*Musician – Stevie WonderRhythm Guitar – Ben BridgesTenor Saxophone – Trevor LawrenceTrumpet – Raymond Maldonado*, Steve Madaio

Alto Saxophone – Hank ReddBacking Vocals – Renee HardawayDrums – Raymond PoundsMusician – Stevie WonderTenor Saxophone – Trevor LawrenceTrumpet – Raymond Maldonado*, Steve Madaio

Musician – Stevie Wonder

Backing Vocals – West Angeles Church Of God ChoirMusician – Stevie WonderPercussion – Bobbye Hall, Raymond Maldonado*

Musician – Stevie WonderOrgan – Ronnie FosterPercussion – Nastee Latimer*Rhythm Guitar – Ben Bridges

Alto Saxophone – Hank ReddBacking Vocals – Charity McCrary, Deniece Williams, Jerry Hendricks, Linda Lawrence, Linda McCrary, Madelaine 'Gypsy' Jones, Mary Lee Whitney, Minnie Riperton, Sundray Tucker, Syreeta WrightLead Guitar – Mike Sembello*Musician – Stevie WonderVocals [Reply] – Shirley Brewer

Keyboards – Gregory Phillinganes*Lead Guitar – Mike Sembello*Musician – Stevie WonderRhythm Guitar – Ben Bridges

Bass – Nathan WattsMusician – Stevie WonderSaxophone – Jim HornSteel Guitar – Peter 'Sneake Pete' Kleinow*

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

Backing Vocals – Susaye Green*Keyboards – Gregory Phillinganes*Musician – Stevie Wonder

Musician – Stevie WonderTenor Saxophone, Alto Saxophone – Hank ReddTrombone – George Bohanon, Glenn FerrisTrumpet – Steve Madaio

Musician – Stevie WonderPercussion – Amale Mathews, Charles Brewer, John Fischbach, Josette Valentino, Marietta Waters, Nathan Watts, Nelson Hayes, Renee Hardaway, Shirley Brewer

Harp – Dorothy AshbyMusician – Stevie Wonder

Backing Vocals – Mary Lee WhitneyBass – Nathan WattsDrums – Nathan WattsGuitar – Dean ParksHandclaps – Dave Henson*, Herbie Hancock, Josette Valentino, Nathan Watts, Stevie Wonder, Yolanda SimmonsKeyboards – Herbie HancockMusician – Stevie Wonder

Alto Saxophone – Hank ReddBacking Vocals – George Benson, Josie James, Steve Wonder*Bass – Nathan WattsFlute – Bobbi HumphreyGuitar – George BensonMusician – Stevie WonderPercussion – Nathan Alford, Jr.Tenor Saxophone – Trevor LawrenceTimbales – Carmello Hungria Garcia*Trumpet – Ray Maldonado, Steve Madaio

Backing Vocals – Carolyn DennisLead Guitar – W. G. "Snuffy" Walden*Musician – Stevie WonderRhythm Guitar – Ben Bridges, Mike Sembello*

Bass – Nathan WattsMusician – Stevie Wonder