Featuring
Alan Mason on vocal scratches
Aleta Braxton on choir, chorus
Alwyn Wright on violin
Alyss Olivia Sanner on choir, chorus
Alyssa Park on violin
Amy Wickman on violin
Angel Williams on choir, chorus
Angela Joy Seard on choir, chorus
Anna Stafford on violin
Aroussiak Baltaian on strings
Audrey Solomon on violin
Barbara Allen on choir, chorus, choir contractor
Bill Bottrell on guitar, conga
Bonita Brisco on choir, chorus
Brian MacLeod on drums
Cameron Patrick on violin
Camille Grigsby on choir, chorus
Caroline Buckman on viola
Carver Cossey on choir, chorus
Cassandra Grigsby on choir, chorus
Chara Hammonds on choir, chorus
Charlean Carmon on choir, chorus
Cheryl Brown on choir, chorus
Cookie Lewis on choir, chorus
Damon Fox on organ (hammond)
Daniel Plaster on choir, chorus
Danny Seidenberg on strings
Daphne Chen on violin, soloist, concert mistress
Darrin McCann on viola
David Hernandez on choir, chorus
David Sage on viola
Denise Grisgsby on choir, chorus
Denisha Millsap on choir, chorus
Desarae Johnson on choir, chorus
Diego Miralles on cello
Dieyelle Reed on choir, chorus
DJ Premier on percussion, vocal scratches, drums
Elin Carlson on choir, chorus
Eric Gorfain on violin, string arrangements
Eric Schermerhorn on guitar
Erica L. King on choir, chorus
Erika Jerry on choir, chorus
Esther Marie Austin on choir, chorus
Francis Senger on double bass
Garik Terzian on strings
Garrett Smith on horn
Glenn Berger on saxophone
Hanymons Cahra on choir, chorus
Ilana Setapen on strings
Isabelle Senger on violin
Ivan Gilliland on choir, chorus
Jacinda Townsley on choir, chorus
Janet Korsmeyer on choir, chorus
Jason McGee on choir, chorus
Jason Torreano on double bass
Jeannine Wagner on contractor, choir contractor
Jherimi Leigh Carter on choir, chorus
Jim McMillen on trombone
Joan Ellis on choir, chorus
Joel Pargman on strings
John Krovoza on cello
Jonathan Pryce on sample clearance
Josephina Vergara on violin
Judith Siirila Paskowitz on choir, chorus
Julian Hallmark on violin
Julie Rogers on violin
Kara Dioguardi on vocal scratches
Kenya Hathaway on choir, chorus
Kevin Shannon on choir, chorus
Kobie Brown on sample clearance
Leah Katz on viola
Linda Perry on bass, guitar, organ (hammond), choir, chorus, horn arrangements, string arrangements, mellotron, piano
Lynda Sue Marks Guarnieri on choir, chorus
Mabvuto Carpenter on choir, chorus
Marcy Vaj on violin
Marda Todd on viola
Marisa Kuney on violin
Mark Ronson on bass, beats, keyboards, guitar
Mathew Cooker on cello
Meelah Williams on choir, chorus
Melissa Reiner on violin
Miguel Gandleman on horn
Monika Bruckner on choir, chorus
Movement Orchestra Horns on horn
Nancy Gassner Clayton on choir, chorus
Natalie Ganther on choir, chorus
Nathan Wetherington on drums
Nicole Ganther on choir, chorus
Onitsha Shaw on choir, chorus
Oscar Ramirez on vocal recording
Paul Ill on bass
Paul Klintworth on french horn
Printz Board on trumpet
Radu Pieptea on violin
Randy Jones on tuba
Ray Hermann on clarinet, saxophone
Ray Herrmann on saxophone
Ray Yslas on percussion
Raymond "Ez" Monteiro on horn
Raymond Angry on organ, clavinet, moog synthesizer, piano
Richard Dodd on cello
Richard Redd on choir, chorus
Richard T. Sledge on choir, chorus
Rob Lewis on bass, vocal producer, choir arrangement, string arrangements, guitar, horn arrangements
Rochelle Rawls on choir, chorus
Roger Wagner Chorale on choir, chorus
Roseland Holmes on choir, chorus
Sandra Beckwith on choir, chorus
Section Quartet & Friends on strings
Sharlotte Gibson on choir, chorus
Sonya Byous on choir, chorus
Stephen Amerson on choir, chorus
Steve Winwood on piano, organ (hammond)
Susan Chatman on violin
Susan Taylor Mills on choir, chorus
Terry Glenny on violin
Thomassina Atkins on choir, chorus
Tom Tally on viola
Tony Reyes on bass, strings, keyboards, percussion
Traci Brown on choir, chorus
Tracie Burton on vocal scratches
Traneen Young on choir, chorus
Vernon Keith Allen on choir, chorus
Victor Lawrence on cello
Victoria Lanier on violin
Wayne Bergeron on trumpet
William Tell Taylor on choir, chorus
Yvette Andrews Mitchell on choir, chorus

Engineered By
Alan Mason (assistant)
Charles Martin Roane
Charles Roane
Chris Wonzer (assistant)
DJ Premier
Kristofer Kaufman (assistant)
Linda Perry
Mark Ronson
Oscar Ramirez
Tal Herzberg

Produced By
Balewa Muhammad
Christina Aguilera (executive)
E. Dawk
Glen Ballard
Heather Holley
Jasper Cameron
Linda Perry
Rob Hoffman
Rockwilder
Ron Fair (executive)
Scott Storch
Steve Morales

Featuring
Aaron Fishbein on guitar, guitar (electric)
Ahmir Khalib Thompson on drums
Alex Al on bass
Alexandra Brown on vocals (background)
Alfie Silas on vocals (background)
Alicia Keys on piano, instrumentation, vocals (background)
Anson Dawkins on choir arrangement
Arthur White on guitar
Bill Reichenbach Jr. on horn
Bill Ross on orchestral arrangements
Brian Frazier Moore on drums
Brian MacLeod on drums
Charles Hines on vocals (background)
Christina Aguilera on vocals (background)
Crystal Drummer on vocals (background)
Damon Fox on keyboards
Dan Higgins on horn
Darryl Dixon on horn
Dave Navarro on guitar
David Siegel on keyboards
David Warner on guitar (electric tenor)
David Watson on horn
Davy Vain on pro-tools
Eric Dawkins on choir arrangement
Eric King on vocals (background)
Gary Grant on horn
Glen Ballard on guitar
Greg Phillinganes on piano, organ (hammond)
Jerry Hey on horn
JoAnn Tominaga on music contractor
John Goux on guitar
Kameron Houff on drums
Lili Haydn on violin, viola
Linda Perry on bass, strings, piano, guitar, string arrangements, instrumentation, drum programming
Matt Chamberlain on drums
Maxi Anderson on vocals (background), choir, chorus
Maxine Willard Waters on vocals (background)
Michael Landau on guitar
Mike Elizondo on bass
Mike Stinson on drums
Paul Alexandre John on drums
Ramon Stagnaro on guitar (acoustic)
Randy Kerber on keyboards
Richard Dodd on cello
Rob Hoffman on guitar, orchestra production, fender rhodes
Ron Fair on a&r, string arrangements
Russell Jackson on bass
Shanti Randall on viola
Stephanie Kubiak on production assistant
Steve Morales on drum programming
Tarus Mateen on bass
Uriah Duffy on bass

Engineered By
Aaron Lepley (assistant)
Alex Gibson (assistant)
Anthony Kilhoffer (assistant)
Brian Douglas (assistant)
David Guerrero
Davy Vain (assistant)
Ethan Willoughby (assistant)
Jay Goin (assistant)
Kevin Szymanski (assistant)
Linda Perry
Oscar Ramirez
Rafael Serrano (assistant)
Rob Hoffman
Scott Campbell
Scott Whiting (assistant)
Shane Stoner
Wassim Zreik

Produced By
Aaron Zigman
Carl Sturken
Dave Frank
David Frank
Diane Warren
Evan Rogers
Guy Roche
Johan Åberg
Khris Kellow
Matthew Wilder
Paul Rein
Robert Hoffman
Rogers
Ron Fair (executive)
Ron Harris
Steve Kipner
Sturkin
Thicke
Travon Potts

Featuring
Aaron Zigman on orchestral arrangements
Airiq Anest on drum programming
Ali Boudris on guitar
Anthony Mazza on guitar
Brock Walsh on vocal arrangement
Bruce Watson on guitar
Carl Sturken on multi instruments, instrumentation
ChakDaddy on horn
Christina Aguilera on vocal arrangement, main performer, vocals, vocals (background)
Dave Frank on drums, keyboards
David Frank on drums, keyboards, vocal arrangement
Doreen Dorian on associate producer
E. Dawk on horn
Evan Rogers on vocals (background)
Gary Grant on horn
Heather Holley on piano
Joel Peskin on horn
John Glaser on moog synthesizer
John Goux on guitar
Khris Kellow on keyboards, drum programming
Matt Laug on tambourine
Michael Thompson on guitar
Nick Cucci on marketing
Paul Rein on keyboards
Rick Baptiste on horn
Robert Hoffman on bass, drum programming, keyboards
Ron Fair on piano, harpsichord, keyboards, a&r
Shelly Peiken on vocals (background)
Steve Kipner on vocal arrangement, drums, keyboards
Steve Porcaro on synthesizer programming
Sue Ann Carwell on vocals (background)
Thicke on synthesizer, guitar (bass), keyboards, drums
Tim Pierce on guitar
Travon Potts on multi instruments

Engineered By
Aaron Zigman
Al Hemberger
Ali Boudris
Dan Garcia
Dave Frank
David Frank
Doc Little
Joe Brown (assistant)
Johan Åberg
Mario Lucy
Michael C. Ross
Mike Hatzinger
Paul Arnold
Phil Kaffel
Ron Harris
Steve Kipner
Terri Wong (assistant)
Thicke
Tom Bender (assistant)