Enrique Iglesias – Insomniac

Backing Vocals [Female] – Anna Nordell
Producer – Kristian Lundin
Recorded By, Mixed By, Keyboards, Programmed By [Keyboards] – Kristian Lundin
Written-By – Enrique Iglesias
Written-By – Kristian Lundin
Written-By – Savan Kotecha

Featuring – Lil Wayne
Producer – Steve Morales
Producer [Vocals] – Carlos Paucar
Producer [Vocals] – Enrique Iglesias
Written-By – Steve Morales
Written-By – Enrique Iglesias
Written-By – Lil Wayne
Written-By – Adonis Shropshire

Mixed By – Mark Stent
Producer – Sean Garrett
Producer – Brian Kidd
Producer [Vocals] – Carlos Paucar
Producer [Vocals] – Enrique Iglesias
Written-By – Enrique Iglesias
Written-By – Sean Garrett
Written-By – Brian Kidd

Producer – John Shanks
Written-By – John Shanks
Written-By – Enrique Iglesias
Written-By – Kara DioGuardi

Instruments – Tor Erik Hermansen
Instruments – Mikkel S. Eriksen
Management [Stargate Management] – Dancin' Danny D
Management [Stargate Management] – Tim Blacksmith (3)
Mixed By – Phil Tan
Mixed By [Assistant] – Josh Houghkirk
Producer – StarGate (2)
Recorded By – Mikkel S. Eriksen
Vocals [Additional] – Johnta Austin
Written-By – Enrique Iglesias
Written-By – Johnta Austin
Written-By – Hallgeir Rustan
Written-By – Tor Erik Hermansen
Written-By – Mikkel S. Eriksen

Adapted By – Enrique Iglesias
Producer – Scott Thomas
Producer [Vocals] – Carlos Paucar
Producer [Vocals] – Enrique Iglesias
Written-By – Scott Thomas

Mixed By – Mark Stent
Producer – Arnthor
Producer – Rami
Written-By – Enrique Iglesias
Written-By – Arnthor Birgisson
Written-By – Rami Yacoub

Mixed By – Phil Tan
Producer – Arnthor
Producer – Rami
Written-By – Enrique Iglesias
Written-By – Arnthor Birgisson
Written-By – Rami Yacoub

Producer – Mark Taylor
Recorded By, Mixed By – Mark Taylor
Recorded By, Mixed By – Ren Swan
Written-By – Enrique Iglesias
Written-By – Mark Taylor
Written-By – Paul Barry

Producer – John Shanks
Written-By – John Shanks
Written-By – Enrique Iglesias
Written-By – Kara DioGuardi

Engineer – Andy Ellis
Mixed By – Randy Staub
Producer – Brodie Stewart
Producer [Vocals] – Carlos Paucar
Producer [Vocals] – Enrique Iglesias
Written-By – Brodie Stewart

Producer, Mixed By – Mark Taylor
Recorded By – Alex Smith (7)
Recorded By – Mark Taylor
Written-By – Enrique Iglesias
Written-By – Mark Taylor
Written-By – Paul Barry

Backing Vocals – Michael Cosculluela
Lyrics By [Spanish] – Luis Gómez Escolar
Mixed By – Mark Stent
Producer [Spanish Version], Producer [Vocals] – Carlos Paucar
Producer [Spanish Version], Producer [Vocals] – Enrique Iglesias
Written-By – Enrique Iglesias
Written-By – Sean Garrett
Written-By – Brian Kidd

Lyrics By [Spanish] – Luis Gómez Escolar
Producer [Spanish Version], Producer [Vocals] – Carlos Paucar
Producer [Spanish Version], Producer [Vocals] – Enrique Iglesias
Written-By – John Shanks
Written-By – Enrique Iglesias
Written-By – Kara DioGuardi

Lyrics By [Spanish] – Luis Gómez Escolar
Mixed By – Mark Stent
Producer [Spanish Version], Producer [Vocals] – Carlos Paucar
Producer [Spanish Version], Producer [Vocals] – Enrique Iglesias
Written-By – Scott Thomas

Mixed By – Walter Turbitt
Mixed By, Producer – Mark Taylor
Written-By – Enrique Iglesias