Cee-Lo – Cee-Lo Green... Is The Soul Machine

Backing Vocals – The Callaway Sisters
Backing Vocals – Gaelle Adisson
Backing Vocals – Tori Alamaze
Keyboards – Ced Keyz International
Percussion – Jimmy Young (10)
Producer – Traxx (2)
Written-By – Chris Rogers (2)

Backing Vocals – Tori Alamaze
Mixed By – Phil Tan
Mixed By [Additional] – John Frye
Mixed By [Assisted By] – John Horesco IV
Producer – The Neptunes
Recorded By – Brian Frye
Recorded By – Andrew Coleman (3)
Vocals [Featuring] – Pharrell Williams
Written-By – Chad Hugo
Written-By – Randy Bachman
Written-By – Pharrell Williams
Written-By – Burton Cummings

Drums – Mark Mays

Backing Vocals, Instruments [All Instruments], Producer, Programmed By, Vocals [Featuring] – Timbaland
Mixed By – Timbaland
Mixed By – Jimmy Douglass
Mixed By [Assisted By] – Javier Valverde
Recorded By – Jimmy Douglass
Written-By – Timothy Mosley

Producer, Vocals [Featuring] – Jazze Pha
Rap [Featuring] – T.I.
Written-By – Hank Shocklee
Written-By – Philip Bailey
Written-By – Clifford Harris
Written-By – Phalon Alexander
Written-By – Maurice White
Written-By – Carlton Ridenhour

Backing Vocals – The Good Time Guys & Girls
Backing Vocals – Jazze Pha
Co-producer, Drum Programming, Vocals [Featuring] – Jazze Pha
Rap [Featuring] – Menta Malone
Written-By – Lloyd Ferguson
Written-By – Fitzroy Simpson
Written-By – "Deadly" Headley Bennett
Written-By – Robbie Lyn
Written-By – Leroy Sibbles
Written-By – Jackie Mittoo
Written-By – Huford Brown

Bass – Shorty B
Drum Programming, Music By, Producer – Organized Noize
Guitar – Mike Hartnett
Rap [Featuring] – Ludacris
Recorded By – Sean Davis
Written-By – Rico Wade
Written-By – Patrick Brown
Written-By – Christopher Bridges
Written-By – Ray Murray

Producer – Eric Stamile

Bass – Aaron Clay
Horns – Hornz Unlimited
Producer – Traxx (2)
Recorded By – Brian Frye
Written-By – Chris Rogers (2)

Bass, Mixed By – Ben H. Allen
Co-producer, Drum Programming [Additional] – Thomas Callaway
Mixed By [Additional] – John Frye
Producer – DJ Premier
Vocals [Featuring] – Chazzie
Voice [Featuring] – Sir Cognac The Conversation
Written-By – John Dankworth
Written-By – Chris Martin (6)

Backing Vocals – Jacosta
Backing Vocals – Nivea
Backing Vocals – Chimere
Bass – Aaron Mills
Drum Programming, Music By, Producer – Organized Noize
Guitar – Mike Hartnett
Horns – Jimmy "Lord" Brown
Keyboards – Sleepy Brown
Rap [Featuring] – G-Rock
Rap [Featuring] – Big Rube
Strings – Dave Robbins
Written-By – Ruben Bailey
Written-By – Rico Wade
Written-By – Greg Martin (16)
Written-By – Patrick Brown
Written-By – Ray Murray

Co-producer – Ben H. Allen
Co-producer – Floyd The Locsmif
Congas – Jimmy Young (10)
Drum Programming – Floyd The Locsmif
Edited By [Digital], Guitar, Programmed By [Additional] – Ben H. Allen
Written-By – Eddie Marion
Written-By – James Banks
Written-By – Henderson Thigpen

Bass – Aaron Clay
Co-producer, Drum Programming [Additional] – DJ Base (2)
Drums – Mark Mays
Keyboards – Ced Keyz International
Percussion – Jimmy Young (10)
Producer, Written-By – Charles Pettaway

Keyboards – Ced Keyz International
Producer – Floyd The Locsmif
Written-By – Leon Douglas II

Mixed By – Phil Tan
Mixed By [Assisted By] – John Horesco IV
Producer – The Neptunes
Recorded By – Andrew Coleman (3)
Vocals [Featuring] – Pharrell Williams
Written-By – Chad Hugo
Written-By – Pharrell Williams

Guitar – Claybourne Lewis
Keyboards – Ced Keyz International