Arranged By – David FrankBacking Vocals – Christina AguileraDrums – David FrankDrums [Additional] – Steve KipnerKeyboards – David FrankKeyboards [Additional] – Steve KipnerLyrics By – David Frank, Pam Sheyne, Rudy Pérez, Steve KipnerMixed By – Bruce Weeden, Dave WayMusic By – David Frank, Pam Sheyne, Steve KipnerProducer – David Frank, Steve KipnerProgrammed By – David FrankRecorded By – Bruce Weeden, Joel Numa, Paul Arnold, Ryan James Freeland*

Acoustic Guitar – Manny López*, René Toledo*Arranged By – Clay Perry, Rudy PérezArranged By [Horns] – Ed CalleBacking Vocals – Christina AguileraBass – Julio Hernández*Drum Programming – Rudy PérezEngineer – Felipe TichauerKeyboards – Clay Perry, Rudy PérezLyrics By – Jorge Luis PilotoMixed By – Bruce WeedenMusic By – Jorge Luis PilotoPercussion – Rudy PérezPercussion [Live] – Richard BravoPiano – Paquito HechavarriaRecorded By – "Bassy" Bob Brockmann*, Bruce Weeden, Joel NumaSaxophone – Ed CalleTrombone – Dana TeboeTrumpet – Tony Concepción*

Arranged By – Ron Fair, Rudy PérezArranged By [Backing Vocals] – Ron Fair, Rudy PérezBacking Vocals – Christina AguileraBass – Julio Hernández*Engineer – Chris Wonzer, Felipe TichauerGuitar – Dan WarnerHandclaps – Agustin Pantoja*Keyboards – Ron Harris, Rudy PérezLyrics By – Franne Golde, Rudy Pérez, Tom SnowMixed By – "Bassy" Bob Brockmann*Music By – Franne Golde, Tom SnowProgrammed By – Ron Harris, Rudy PérezRecorded By – "Bassy" Bob Brockmann*, Michael Ross*

Arranged By – Rudy PérezBacking Vocals – Christina AguileraDrum Programming – Kristian "Renegade" PerezEngineer – Felipe TichauerGuitar – Dan WarnerGuitar [Spanish] – Rudy PérezKeyboards – Clay Perry, Rudy PérezLyrics By – Rudy PérezMixed By – "Bassy" Bob Brockmann*, Mike CouzziMusic By – Rudy PérezProgrammed By – Clay Perry, Rudy PérezRecorded By – Bruce Weeden, Felipe Tichauer

Backing Vocals – Christina Aguilera, Wendy PedersenDrums – Johan Aberg, Paul ReinEngineer – Andrés Bermúdez*, Chris Wonzer, Felipe Tichauer, Tony FloresKeyboards – Paul ReinLyrics By – Johan Aberg, Paul Rein, Rudy PérezMixed By – Bruce Weeden, Peter MokranMusic By – Johan Aberg, Paul ReinProducer – Johan Aberg, Paul ReinProgrammed By – Johan Aberg, Paul ReinRecorded By – Bruce Weeden, Johan Aberg, Michael Ross*

Acoustic Guitar – Rudy PérezArranged By – Clay Perry, Rudy PérezArranged By [Strings] – Gary Lindsay, Rudy PérezBacking Vocals – Geannie Cruz, Raúl Midón*Bass – Julio Hernández*Drum Programming – Rudy PérezDrums – Lee LevinEngineer – Felipe TichauerFeaturing – Luis FonsiGuitar – Michael ThompsonKeyboards – Clay Perry, Rudy PérezLyrics By – Rudy PérezMixed By – Bruce WeedenMusic By – Rudy PérezPercussion – Rudy PérezRecorded By – Bruce Weeden, Felipe Tichauer, Joel Numa, Michael Ross*, Mike Greene*Strings – La Sinfónica de Utah*

Acoustic Guitar – Manny LopezArranged By – Rudy PérezBass – Julio Hernández*Drums – Lee LevinEngineer – Chris Wonzer, Felipe TichauerKeyboards – Rudy PérezLyrics By – Cesar Portillo De La LuzMixed By – Bruce WeedenMusic By – Cesar Portillo De La LuzPercussion – Richard BravoRecorded By – Bruce Weeden, Felipe Tichauer, Joel Numa, Michael Ross*

Arranged By – Sergio GeorgeArranged By [Horns] – Sergio GeorgeBacking Vocals – Christina Aguilera, Debra Resto*, Laurie VélezDrums – Sergio GeorgeElectric Bass – Rubén Rodríguez*Engineer – Felipe TichauerLyrics By – Manuel Lopez*, Rudy PérezMixed By – Bruce WeedenMusic By – Manuel Lopez*, Rudy PérezPercussion – Marc Quiñonez*, Rafael PadillaPiano – Paquito HechavarriaProducer – Sergio GeorgeProducer [Vocals] – Rudy PérezProgrammed By – Sergio GeorgeRecorded By – "Bassy" Bob Brockmann*, Bruce Weeden, Mario De Jesús*Saxophone – Ed CalleTrombone – Dana TeboeTrumpet – Tony Concepción*

Backing Vocals – Christina Aguilera, Rudy Pérez, Wendy PedersenEngineer – "Famous" David Nash*, Felipe Tichauer, Tom BenderExecutive-Producer – Diane WarrenGuitar – Michael Thompson, Tim PierceLyrics By – Diane Warren, Rudy PérezMixed By – Bruce Weeden, Mick GuzauskiMusic By – Diane WarrenProducer – Guy RocheProgrammed By – Guy RocheRecorded By – Bruce Weeden, Joel Numa, Mario LuccySynthesizer – John Glaser

Backing Vocals – Christina Aguilera, Wendy PedersenEngineer – Chris Wonzer, "Famous" David Nash*, Felipe Tichauer, Michael HuffGuitar – Bruce Watson, John GouxLyrics By – Guy Roche, Rudy Pérez, Shelly PeikenMixed By – Dave Way, Mike CouzziMusic By – Guy Roche, Shelly PeikenProducer – Guy RocheProgrammed By – Guy RocheRecorded By – Bruce Weeden, Mario Luccy, Ron FairTambourine – Matt Laug

Conductor – Jerry GoldsmithEngineer – Felipe Tichauer, Tony FloresLyrics By – David Zippel, Matthew Wilder, Rudy PérezMixed By – Mike Couzzi, Peter MokranMusic By – David Zippel, Matthew WilderOrchestrated By – Aaron Zigman, Matthew WilderProducer – Matthew WilderRecorded By – Bruce Weeden, Phil Kaffel