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

Written-By – C. Hardaway*, S. Wonder*

Written-By – Byrd*, S. Wonder*

Backing Vocals – Artece May, Josie James, Michael Gray , Shirley BrewerBass [Wonderlove] – Nathan WattsDrums [Wonderlove] – Raymond PoundsFeaturing – WonderloveKeyboards [Wonderlove] – Gregory Phillinganes*Lead Guitar – Mike Sembello*Rhythm Guitar [Wonderlove] – Ben BridgesWritten-By – S. Wonder*

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

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

Written-By – S. Wonder*

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

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

Alto Saxophone – Hank ReddBacking Vocals – Charity McCrary, Deniece Williams, Linda McCrary, Linda Lawrence*, Madelaine "Gypsie" Jones*, Mary Lee Whitney, Minnie Riperton, Sundray Tucker, Syreeta Wright, Terry HendricksBacking Vocals [Ordinary Pain's Reply] – Shirley BrewerLead Guitar – Mike Sembello*Written-By – S. Wonder*

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

Bass – Nathan WattsOther [Special Thanks - Z Articulation] – Tom ParmaSaxophone – Jim HornSteel Guitar – Peter "Sneaky Pete" Kleinow*Written-By – S. 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 – S. Wonder*

Alto Saxophone, Tenor Saxophone – Hank ReddBacking Vocals [Al Fann Theatrical Ensemble, Harlem, N.y., 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 HarrisBacking Vocals [Al Fann Theatrical Ensemble, Harlem, N.y., 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 MooreBacking Vocals [Teacher's And Student's Verbal Replies] – Al Fann Theatrical Ensemble, Harlem, N.Y.Trombone – George Bohanon, Glen Ferris*Trumpet – Steve MadaioWritten-By – Byrd*, S. Wonder*

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

Harmonica – Stevie WonderHarp – Dorothy AshbyWritten-By – S. Wonder*

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

Backing Vocals – Carolyn DennisLead Guitar – W.G. 'Snuffy' Walden*Other [Special Thanks - Marshall Time Modulator] – Steven St. CroixRhythm Guitar – Ben Bridges, Mike Sembello*Written-By – S. Wonder*

Bass – Nathan WattsWritten-By – S. Wonder*

Written By – S. Wonder/C. Hardaway

Written By – S. Wonder/S. Byrd