Acoustic Guitar – Ramon StagnaroArranged By, Keyboards, Programmed By – Lester MendezBass – Reggie HamiltonChoir – Lena Pérez, Raul Midón, Wendy PedersenDrums – Lee LevinElectric Guitar – Rusty AndersonMixed By – Sebastian KrysProducer – Enrique Iglesias, Lester MendezWritten-By – Gerardo "Cachorro" López*, Sandra Baylac, Sebastián Schon

Acoustic Guitar – Ramon StagnaroArranged By [Strings] – Jorge CalandrelliArranged By, Keyboards, Programmed By, Arranged By [Additional Strings] – Lester MendezChoir – Raul Midón, Wendy PedersenConcertmaster, Contractor – Alfredo OlivaElectric Guitar – Michael ThompsonMixed By – Humberto GaticaProducer – Enrique Iglesias, Lester MendezStrings – Miami Symphonic StringsWritten-By – Chein Garcia, Enrique Iglesias, Lester Mendez

Acoustic Guitar – Michael ThompsonArranged By, Keyboards, Programmed By – Lester MendezChoir – Raul Midón, Wendy PedersenElectric Guitar – Rusty AndersonMixed By – Jon GassProducer – Enrique Iglesias, Lester MendezWritten-By – Antonio Vega

Acoustic Guitar – Ramon StagnaroArranged By [Strings] – Jorge CalandrelliArranged By, Keyboards, Programmed By – Lester MendezBass – Reggie HamiltonChoir – Raul Midón, Wendy PedersenConcertmaster, Contractor – Alfredo OlivaDrums – Lee LevinElectric Guitar – Michael Thompson, Rusty AndersonMixed By – Humberto GaticaPercussion – Richard BravoProducer – Enrique Iglesias, Lester MendezStrings – Miami Symphonic StringsWritten-By – Chein Garcia, Enrique Iglesias

Acoustic Bass – Reggie HamiltonAcoustic Guitar – Rusty AndersonArranged By [Strings] – Jorge CalandrelliArranged By, Keyboards, Programmed By – Lester MendezChoir – Raul Midón, Wendy PedersenClassical Guitar [Nylon] – Ramon StagnaroConcertmaster, Contractor – Alfredo OlivaDrums – Lee LevinElectric Guitar – Michael ThompsonMixed By – Jon GassProducer – Enrique Iglesias, Lester MendezStrings – Miami Symphonic StringsWritten-By – Enrique Iglesias, Lester Mendez

Arranged By – Rafael Pérez-BotijaChoir – Esmeralda Grao, Luis Miguel Baladrón*, Raul Midón, Wendy PedersenEngineer – Carlos Paucar, Elias Ponce, Raúl Quilez, Sergio Delgado Engineer [Assistant] – Alex Dixon, Oswald BoweGuitar – George Doering, Juan CerroOboe – Chris BlethProducer – Carlos Paucar, Enrique Iglesias, Rafael Pérez-BotijaWritten-By – Enrique Iglesias, Rafael Pérez-Botija

Acoustic Guitar – Michael ThompsonArranged By, Keyboards, Programmed By – Lester MendezChoir – Raul Midón, Wendy PedersenElectric Guitar – Rusty AndersonMixed By – Jon GassProducer – Enrique Iglesias, Lester MendezWritten-By – Enrique Iglesias, Rafael Pérez-Botija

Acoustic Guitar – Michael ThompsonArranged By, Keyboards, Programmed By – Lester MendezBass – Reggie HamiltonChoir – Raul Midón, Wendy PedersenDrums – Lee LevinElectric Guitar – Rusty AndersonMixed By – Jon GassProducer – Enrique Iglesias, Lester MendezWritten-By – Chein Garcia, Enrique Iglesias

Acoustic Guitar – Ramon StagnaroArranged By, Keyboards, Programmed By – Lester MendezBongos – Richard BravoChoir – Lena Pérez, Raul Midón, Wendy PedersenElectric Guitar – Rusty AndersonMixed By – Jon GassProducer – Enrique Iglesias, Lester MendezWritten-By – Chein Garcia, Enrique Iglesias, Lester Mendez

Mixed By – Eric Shilling*Written-By – Chein Garcia, Enrique Iglesias

Adapted By [Spanish] – Chein Garcia, Enrique IglesiasChoir – Enrique Iglesias, Jon Secada, Kara DioGuardi, Rita Quintero, Steve Morales, Willie Perez-Feria*Co-producer – Enrique IglesiasGuitar – Arron Fishbein*Keyboards – David SiegelProducer – Steve MoralesProducer [Vocals] – Carlos Paucar, Enrique IglesiasWritten-By – David Siegel, Enrique Iglesias, Kara DioGuardi, Steve Morales