Musician – Stevie WonderMusician, Percussion [Collinga] – Eddie "Bongo" BrownWritten-By – Stevie Wonder

Musician – Stevie WonderWritten-By – Calvin Hardaway, Stevie Wonder

Musician – Stevie WonderWritten-By – Shatema Byrd, Stevie Wonder

Backing Vocals – Artece May, Josie James, Michael Gray , Shirley BrewerFeaturing – WonderloveFeaturing [Wonderlove], Bass – Nathan WattsFeaturing [Wonderlove], Drums – Raymond PoundsFeaturing [Wonderlove], Keyboards – Gregory Phillinganes*Featuring [Wonderlove], Rhythm Guitar – Ben BridgesMusician – Stevie WonderMusician, Lead Guitar – Mike Sembello*Written-By – Stevie Wonder

Musician – Stevie WonderMusician, Alto Saxophone – Hank ReddMusician, Bass – Nathan WattsMusician, Drums – Raymond PoundsMusician, Lead Guitar – Mike Sembello*Musician, Rhythm Guitar – Ben BridgesMusician, Tenor Saxophone – Trevor LawrenceMusician, Trumpet – Raymond Maldonado*, Steve MadaioWritten-By – Stevie Wonder

Backing Vocals – Renee HardawayMusician – Stevie WonderMusician, Alto Saxophone – Hank ReddMusician, Bass – Nathan WattsMusician, Drums – Raymond PoundsMusician, Tenor Saxophone – Trevor LawrenceMusician, Trumpet – Raymond Maldonado*, Steve MadaioWritten-By – Stevie Wonder

Musician – Stevie WonderWritten-By – Stevie Wonder

Backing Vocals [Hare Krishna] – Agnideva Dása*, Baradras, Bhakta Eddie, Bhakta Gregory, Bhakta Kevin, Cinmayi Dasi, Duryodhana Guru Dása*, Jayasacinandana Dása*, Jitamrtyu Dása*, Rukmini, Vedavyâsa Dása*, Yogamaya DasiBacking Vocals [West Angeles] – Addie Cox, Carolyn Johnson, Dennis Swindell, Ethel Enoex, Jacqueline F. English, James Lambert, Lonnie Morgan, Michael Gray , Michael Wycoff, Phillip Kimble, Rosona Starks, Sheryl WalkerChoir – Hare Krishna, West Angeles Church Of God ChoirMusician – Stevie WonderMusician, Percussion – Bobbye Hall, Raymond Maldonado*Written-By – Stevie Wonder

Musician – Stevie WonderMusician, Organ – Ronnie FosterMusician, Percussion – Nastee Latimer*Musician, Rhythm Guitar – Ben BridgesWritten-By – Stevie Wonder

Backing Vocals – Charity McCrary, Deniece Williams, Linda McCrary, Linda Lawrence*, Madelaine "Gypsie" Jones*, Mary Lee Whitney, Minnie Riperton, Sundray Tucker, Syreeta Wright, Terry HendricksMusician – Stevie WonderMusician, Alto Saxophone – Hank ReddMusician, Lead Guitar – Mike Sembello*Vocals [Ordinary Pain's Reply] – Shirley BrewerWritten-By – Stevie Wonder

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

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

Chorus [Teacher's And Student's Verbal Replies] – Al Fann Theatrical Ensemble, Harlem, N.Y.Musician – Stevie WonderMusician, Alto Saxophone, Tenor Saxophone – Hank ReddMusician, Trombone – George Bohanon, Glen Ferris*Musician, Trumpet – Steve MadaioPerformer [Children] – Al Jocko Fann, Anthony Givens, Antonio Givens, Audrey Givens, Calvin Johnson , Carl Lockhart, Carolyn Massenburg, Derrick Givens , Doé Rain Edwards, Gail Lockhart, Gregory Rudd, Gwen Perry , Henry America, Irma Leslie, Jan Adams, Jean Brown , Jeania Harris, Keith Slaughter , Khalif Bobatoon, Kim Lewis , Kim Nixon, Linda America, Lisa Nixon, Melani Fann, Rodney Brown , Starshemah Bobatoon, Susie Fuzzell, Tracy Fann, Troy HarrisPerformer [Teachers] – Adrian James, Al Fann, Barbara Fann, Berry Bridges, Cecelia Brown, Gary Byrd, Gary Veney, Larri Nuckens, Mi Mi Green, Mildred Givens, Pat Johnson , Shelley Fann, Sudana Bobatoon, Willie MooreWritten-By – Stevie Wonder

Musician – Stevie WonderPercussion – 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

Musician, Harmonica – Stevie WonderMusician, Harp – Dorothy AshbyWritten-By – Stevie Wonder

Backing Vocals – Mary Lee WhitneyHandclaps – Dave Henson*, Herbie Hancock, Josette Valentino, Nathan Watts, Stevie Wonder, Yolanda SimmonsMusician – Stevie WonderMusician, Bass – Nathan WattsMusician, Drums – Greg BrownMusician, Guitar – Dean ParksMusician, Keyboards – Herbie HancockWritten-By – Stevie Wonder

Backing Vocals – George Benson, Josie James, Stevie WonderMusician – Stevie WonderMusician, Alto Saxophone – Hank ReddMusician, Bass – Nathan WattsMusician, Flute – Bobbi HumphreyMusician, Guitar – George BensonMusician, Percussion – Nathan Alford, Jr.Musician, Tenor Saxophone – Trevor LawrenceMusician, Timbales – Carmello Hungria Garcia*Musician, Trumpet – Raymond Maldonado*, Steve MadaioWritten-By – Stevie Wonder

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

Musician – Stevie WonderMusician, Bass – Nathan WattsMusician, Saxophone – Jim HornMusician, Steel Guitar – Peter "Sneaky Pete" Kleinow*Written-By – Stevie Wonder

Musician – Stevie WonderMusician, Lead Guitar – W. G. 'Snuffy' Walden*Musician, Rhythm Guitar – Ben Bridges, Mike Sembello*Written-By – Stevie Wonder

Musician – Stevie WonderMusician, Bass – Nathan WattsWritten-By – Stevie Wonder