Stevie Wonder[MainArtist], Stevie Wonder[Producer], Stevie Wonder[ComposerLyricist], Robert Margouleff[Producer], Robert Margouleff[Associate Producer], Robert Margouleff[StudioPersonnel], Robert Margouleff[Engineer], Robert Margouleff[AssociatedPerformer], Robert Margouleff[Programming], Malcolm Cecil[Producer], Malcolm Cecil[Associate Producer], Malcolm Cecil[StudioPersonnel], Malcolm Cecil[Engineer], Malcolm Cecil[AssociatedPerformer], Malcolm Cecil[Programming], Rick Rowe[StudioPersonnel], Rick Rowe[Recording Engineer], Joan DeCola[StudioPersonnel], Joan DeCola[Recording Engineer]