• Che Guevara
• Drum Programming

• Manny Marroquin
• Mixing

• Tony Maserati
• Mixing

• Peter Mokran
• Mixing

• Ralph Morrison
• Concert Master

• Pino Palladino
• Bass

• Shawn Pelton
• Drums

• Leon Pendarvis
• Conductor, Orchestral Arrangements

• Neil Pogue
• Mixing

• Herb Powers
• Mastering

• James Poyser
• Piano, Celeste, Vocals (Background)

• Roc Raida
• DJ

• Brian Rawling
• Producer

• Warren Riker
• Mixing

• Tim Roberts
• Assistant Engineer, Assistant

• Nambo Robinson
• Trombone

• Eric Schermerhorn
• Guitar

• Bill Schnee
• String Engineer, Horn Engineer

• Tom Soares
• Engineer

• David Stearns
• Assistant Engineer

• Scott Storch
• Producer

• Craig Street
• Producer

• Phil Tan
• Mixing

• John Weston
• Engineer, Editing

• Erik Lil Rick White
• Director

• Doug Wilson
• Engineer

• Steve Burton
• Keyboards

• Serban Ghenea
• Mixing

• Ken Ifill
• Mixing

• Anthony Jeffries
• Engineer

• Danny Weatherspoon
• Keyboards

• Matt Green
• Assistant

• Tom Coyne
• Mastering

• Commissioner Gordon
• Engineer, Mastering

• Colin Miller
• Mixing

• Timbaland
• Drums, Producer, Mixing, Keyboards, Vocals (Background)

• Femi Ojetunde
• Bass, Keyboards, Programming, Producer, Guitar (Electric)

• Blake Eiseman
• Engineer

• Carlton Lynn
• Engineer, Assistant

• Lauryn Hill
• Vocals, Producer

• Jim Caruana
• Engineer

• Max Martin
• Producer, Drum Programming, Musician

• Kandi Burruss
• Vocals (Background), Producer, Executive Producer

• Gustavo Celis
• Engineer

• Paul J. Falcone
• Engineer

• Max Gousse
• A&R

• Emma Kummrow
• Violin

• Igor Szwec
• Violin

• Damon Dash
• Executive Producer

• Shola Ama
• Vocals (Background)

• Harvey Mason, Jr.
• Digital Editing

• James Cruz
• Mastering

• Adam Phillips
• Guitar

• Shawn Carter
• Executive Producer

• Abel Garibaldi
• Engineer

• Pastor Andrew Merritt
• Vocal Arrangement

• Beyoncé Knowles
• Producer, Executive Producer

• Vada Nobles
• Drum Programming

• Mathew Knowles
• Producer, Executive Producer

• Kanye West
• Producer

• Mark Passy
• Producer, Engineer, Mixing

• Lenesha Randolph
• Vocals (Background)

• Fundisha Johnson
• Vocals (Background)

• Everol Ray
• Trumpet

• Storm Jefferson
• Assistant Engineer

• Devon Kirkpatrick
• Editing

• Eric Gorfain
• String Arrangements

• Mike Caren
• Producer

• Kareem "Biggs" Burke
• Executive Producer

• Jenni Fujita
• Vocals (Background)

• Katrina Willis
• Vocals (Background)

• Justin Timberlake
• Vocals (Background), Producer

• Daphne Chen
• Concert Mistress

• Daniel Milazzo
• Assistant Engineer

• Brian Smith
• Engineer

• Sasha Allen
• Vocals (Background)

• Robert Hannon
• Engineer

• Kyambo "Hip Hop" Joshua
• A&R

• Lenny Santiago
• A&R

• Ian Mereness
• Engineer

• Mike Mosley
• Programming, Drum Programming, Producer, Executive Producer

• Tim Hudson
• Assistant

• Pete Novak
• Engineer

• Larry Strum
• Mixing

• Mr. Leslie Braithwaite
• Mixing

• Josh Wilbur
• Engineer

• Alicia Keys
• Producer

• Javier Gonzales
• Percussion

• Denaun Porter
• Programming

• Paul Meehan
• Programming, Producer

• Tameka "Tiny" Cottle
• Vocals (Background)

• Aaron Fishbein
• Guitar

• Steven Wolf
• Tambourine

• Vadim Chislov
• Assistant Engineer

• Gloria Justin
• Violin

• Conrad Golding
• Engineer

• Greg Price
• Assistant

• Kevin "Shekspere" Briggs
• Engineer

• Warren Bletcher
• Assistant

• Ryan Leslie
• Producer

• Isam Bachiri
• Vocals, Producer

• Seth Waldmann
• Assistant

• Héctor Castillo
• Engineer

• Jared Robbins
• Assistant

• Lenny "Linen" Nicholson
• Producer, Executive Producer

• Liz Garner
• Project Coordinator

• Lukasz "Doctor Luke" Gottwald
• Drum Programming, Musician

• Chris "TEK" ORyan
• Engineer

• Josh Monroy
• Assistant

• Solange Knowles
• Producer

• Marsha "Motha" Donigan
• Vocals (Background)

• John Legend
• Producer

• Sean Tallman
• Assistant

• Mike Tschupp
• Mixing Assistant

• Rommel Nino Villanueva
• Engineer, Mixing

• Jack Splash
• Drum Producer

• Jenny DLorenzo
• Cello

• Josh Houghkirk
• Assistant

• Rob Kinelski
• Assistant Engineer

• Rob "Fonksta" Bacon
• Guitar (Acoustic), Guitar (Electric)

• Francesco Perlangeli
• Engineer

• Tom Talomaa
• Assistant Engineer

• Nathan Wetherington
• Drums

• Kristofer Kaufman
• Assistant

• Venus Brown
• A&R

• John Stahl
• Assistant Engineer

• Eduardo Cabra
• Producer

• Andy Marcinkowski
• Assistant Engineer

• Anthony Palazzole
• Assistant

• Teddy Penderazdoun
• Engineer

• Roberto Almodovar
• Engineer

• Martin K
• Drum Programming

• James "Scrappy" Stassen
• Engineer

• Lenny Martinez
• Keyboards, Producer

• Matthew "Smokey" Harper
• Engineer, Mastering

• Tony Black
• Engineer

• Patrick Magee
• Assistant Engineer

• R. Kelly
• Arranger, Producer, Mixing

• Henrik Andersen
• Guitar

• Kenny Anderson
• Trumpet

• Davis A. Barnett
• Viola

• Jeff Chestek
• String Engineer

• Rob Chiarelli
• Mixing

• Jimmy Douglass
• Engineer, Mixing

• John Frye
• Engineer

• Larry Gold
• String Arrangements, String Conductor

• Gary Grant
• Trumpet

• Earl Harvin
• Drums

• Keith Henderson
• Guitar

• Jerry Hey
• Trumpet

• Dan Higgins
• Saxophone

• Jean-Marie Horvat
• Mixing

• Eric Hudson
• Bass, Producer, Piano

• Maurice Joshua
• Percussion, Mixing

• Kevin Kendricks
• Keyboards

• Debra Killings
• Vocals (Background)

• Elliott Carter
• Engineer

• Whitney Houston
• Vocal Arrangement

• Bill Reichenbach Jr.
• Trombone