Stevie Wonder[MainArtist], Henry Cosby[Producer], Johnny Bristol[Producer], Harvey Fuqua[Producer], Willie Shorter[AssociatedPerformer], Willie Shorter[Recording Arranger], Stevie Wonder[AssociatedPerformer], Stevie Wonder[Vocals], George Gordy[ComposerLyricist], Allen Story[ComposerLyricist], Anna Gaye[ComposerLyricist]