Engineer – David Rubinson, Fred Catero, Jack Leahy
Guitar – David T. Walker, Blackbird McKnight
Guitar, Talkbox [Voice Bag], Synthesizer [Maestro Universal Synthesizer System], Effects [Maestro Sample And Hold Unit] – Wah Wah Watson
Harmonica – Stevie Wonder
Management [Artist] – Adamsdad Management Co.
Mastered By – George Horn, Phil Brown
Percussion – Bill Summers
Piano [Acoustic], Electric Piano [Fender Rhodes], Synthesizer [Arp Odyssey, Pro Solist, 2600 And String Ensemble], Clavinet [Hohner D6], Synthesizer [Oberheim Polyphonic] – Herbie Hancock
Producer – David Rubinson & Friends, Inc., Herbie Hancock
Special thanks to Wah Wah Watson: Guitar, Voice Bag, Maestro Universal Synthesizer System, Maestro Sample and Hold Unit, without whom the production of this record would not have been possible - D.R.&H.H.
A Product of Catero Sound Co., San Francisco
Recorded at Wally Heider Studios, San Francisco, Village Recorders, Los Angeles, Funky Features, San Francisco and Crystal Studios, Los Angeles.
Mike Clark, Paul Jackson, Bennie Maupin, Blackbird McKnight, Bill Summers: Appearing Courtesy Arista Records Stevie Wonder: Appearing Courtesy Motown Records