Producer – DJ PremierScratches [Vocal] – Alan Mason, DJ PremierWritten-By – Chris E. Martin*, Christina Aguilera, Kara DioGuardi, Rick Darnell , Roy Hawkins

Arranged By [Choir Arrangement By] – Rob LewisFeaturing, Piano, Organ [Hammond B-3] – Steve WinwoodProducer – Rich HarrisonVocals [Choir] – Angel Williams, Angela Joy Seard, Bryan Sledge, Camille Grigsby, Cassandra Grigsby, Chara Hammonds, Charlean Carmon, Cookie Lewis, David Hernandez , Denise Grisgsby, Denisha Millsap, Desarae Johnson, Dieyelle Reed, Erica King*, Erika Jerry, Hanymons Chara, Jacinda Townsley, Jason McGee , Jherimi Carter*, Kameelah Williams, Kevin Shannon, Lois Jenkins, Mabvuto Carpenter, Natalie Ganther, Nicole Ganther, Onitsha Shaw, Richard Sledge, Thomasina Atkins, Tony Burrell, Traci Brown, William TaylorWritten-By – Christina Aguilera, Kara DioGuardi, Rich Harrison, Steve Winwood

Producer – DJ PremierScratches [Vocal] – DJ Premier, Kara DioGuardi, Tracie BurtonWritten-By – Chris E. Martin*, Christina Aguilera, Don Costa, Douglas Gibson*, Gerald Thomas*, Harry Jensen, James Castor*, Kara DioGuardi, Langdon Fridie, Jr.*, Robert Manigault

Co-producer, Recorded By – Charles RoaneGuitar – Tareq AkoniPercussion – DJ Premier, Ray YslasProducer – DJ PremierProducer [Additional Vocal Production By] – Rob LewisWritten-By – Charles Roane, Chris E. Martin*, Christina Aguilera, Harold Beatty, Kara DioGuardi

Arranged By [Horns] – Rob LewisHorns – The Movement OrchestraHorns [The Movement Orchestra] – Garrett Smith, Miguel Gandelman, Randy Ellis, Ray MonteiroProducer – Kwame*Recorded By – Tal HerzbergRecorded By [Additional Recording By] – Oscar RamirezVocals [Choir] – Charlean Carmon, Cookie Lewis, Kenya Hathaway, Sharlotte GibsonWritten-By – Allen Toussaint, Christina Aguilera, Kara DioGuardi, Kwame Holland*

Clavinet [Clav], Organ, Piano – Raymond AngryProducer, Drum Programming [Beats], Guitar, Bass, Recorded By – Mark RonsonWritten-By – M. Knight*, Christina Aguilera, Curtis Jackson, Edward Patton*, Gladys Knight, Kara DioGuardi, Mark Ronson, Marvin Bernard, Michael Harper, Raymond Angry, William Guest

Arranged By [Strings], Guitar – Rob LewisCo-producer – L Boogie*Piano, Keyboards – V. Young Producer – Big Tank, Q Strings – The Movement OrchestraStrings [The Movement Orchestra] – Aroussiak Baltaian, Daniel Seidenberg*, Garik Terzian, Ilana Setapen, Joel Pargman, Maia JasperWritten-By – Bruno Coulais, Christina Aguilera, Christophe Barratier, Derryck Thornton, Kara DioGuardi, Liz Thornton, Mark Rankin

Producer, Recorded By – Charles Martin Roane*Written-By – Charles Roane, Christina Aguilera, Kara DioGuardi

Co-producer – L Boogie*Producer – Big Tank, Q Written-By – Christina Aguilera, Derryck Thornton, Kara DioGuardi, Liz Thornton, Mark Rankin

Bass, Guitar – Rob LewisPiano, Synthesizer [Moog] – Raymond AngryProducer, Drum Programming [Beats], Keyboards, Bass, Recorded By – Mark RonsonTrumpet – Printz BoardWritten-By – Christina Aguilera, Kara DioGuardi, Mark Ronson, Rob Lewis

Producer – DJ PremierWritten-By – Chris E. Martin*, Christina Aguilera, Kara DioGuardi

Bass, Keyboards, Percussion, Strings – Tony ReyesProducer – Ben H. Allen, Tony ReyesProgrammed By, Guitar, Percussion, Keyboards – Ben H. AllenRecorded By – Ben H. AllenRecorded By [Vocals] – Oscar RamirezWritten-By – Ben H. Allen, Christina Aguilera, George Henry Jackson*, Heather Holley, Tony Reyes

Producer – DJ PremierWritten-By – Chris E. Martin*, Christina Aguilera, David Frank, Kara DioGuardi, Pamela Sheyne*, Steven Kipner*

Choir – Roger Wagner Chorale*Contractor [Choir] – Jeannine WagnerFrench Horn – Paul KlintworthProducer, Organ [Hammond] – Linda PerrySaxophone, Clarinet – Ray HerrmannTrombone – Jim McMillenTrumpet, Contractor [Horn] – Chris TedescoTuba – Randy Jones Vocals [Roger Wagner Chorale] – Aleta Braxton*, Alyss Olivia Sanner, Carver Cossey, Daniel Plaster, Eli Villanueva, Elin Carlson, Ivan Gallardo, Janet Korsmeyer, Joan Ellis , Judith Siirila Paskowitz*, Leanna Brand, Lynda Sue Marks-Guarnieri, Monika Bruckner, Nancy Gassner Clayton*, Nicole Baker , Risa Larson, Sandra Beckwith, Stephen Amerson*, Susan Montgomery, Susan Taylor Mills, Tina McConnellWritten-By – Christina Aguilera, Linda Perry

Producer – Linda PerrySoloist, Violin – Daphne ChenWritten-By – Christina Aguilera, Linda Perry, Mark Ronson, Paul Ill

Producer, Mellotron, Bass – Linda PerryProgrammed By – Marc JamesonSaxophone – Glen Berger, Ray HerrmannTrombone – Jim McMillenTrumpet, Contractor [Horn] – Chris TedescoWritten-By – Christina Aguilera, Linda Perry

Drums – Brian MacLeodProducer – Linda PerrySaxophone – Glen Berger, Ray HerrmannTrombone – Jim McMillenTrumpet, Contractor [Horn] – Chris TedescoWritten-By – Christina Aguilera, Linda Perry

Producer – Linda PerryTrumpet – Wayne BergeronWritten-By – Christina Aguilera, Linda Perry

Producer – Linda PerryWritten-By – Christina Aguilera, Linda Perry, Mark Ronson

Choir – Linda Perry, Barbara Allen & FriendsContractor [Choir] – Barbara AllenOrgan [Hammond] – Damon Fox Producer, Guitar – Linda PerryVocals [Linda Perry, Barbara Allen & Friends] – Bonita Brisco, Cheryl Brown , Debra Gates, Esther Marie Austin*, Richard Redd, Rochelle Rawls, Roseland Holmes, Sonya Byous, Traneen Young, Vernon Keith Allen*, Yvette Andrews MitchellWritten-By – Christina Aguilera, Linda Perry

Arranged By [Strings] – Linda Perry, The Section QuartetGuitar, Congas – Bill BottrellProducer – Linda PerryWritten-By – Bill Bottrell, Christina Aguilera, Linda Perry

Choir – Roger Wagner Chorale*Contractor [Choir] – Jeannine WagnerProducer – Linda PerryVocals [Roger Wagner Chorale] – Aleta Braxton*, Alyss Olivia Sanner, Carver Cossey, Daniel Plaster, Eli Villanueva, Elin Carlson, Ivan Gallardo, Janet Korsmeyer, Joan Ellis , Judith Siirila Paskowitz*, Leanna Brand, Lynda Sue Marks-Guarnieri, Monika Bruckner, Nancy Gassner Clayton*, Nicole Baker , Risa Larson, Sandra Beckwith, Stephen Amerson*, Susan Montgomery, Susan Taylor Mills, Tina McConnellWritten-By – Christina Aguilera, Linda Perry

Film Director, Director Of Photography – Coodie & ChikeVideo Editor – Brian Kushner