Stevie Wonder[MainArtist], Stevie Wonder[Producer], Stevie Wonder[AssociatedPerformer], Stevie Wonder[Recording Arranger], Stevie Wonder[ComposerLyricist], Gary Olazabal[StudioPersonnel], Gary Olazabal[Recording Engineer], Gary Olazabal[Mix Engineer], Eddie Levert[AssociatedPerformer], Eddie Levert[Background Vocalist], Walter Williams[AssociatedPerformer], Walter Williams[Background Vocalist], Michael Jackson[AssociatedPerformer], Michael Jackson[Background Vocalist], Betty Wright[AssociatedPerformer], Betty Wright[Background Vocalist], Clarence Paul[ComposerLyricist], Morris Broadnax[ComposerLyricist]