Black & Blue

Engineer [Assistant Recording], Engineer [Pro Tools] – John AmatielloGuitar – Henrik JansonStrings – Stockholm Session StringsWritten-By – Max Martin, Rami

Bass – Tomas LindbergEngineer [Pro Tools], Engineer [Xbs Optical Vocal Enhancer] – John AmatielloEngineer [Vocal Recording] – Stefan BomanGuitar – Esbjörn Öhrwall, Max Martin, Peter SvenssonWritten-By – Lisa Miskovsky, Max Martin, Rami

Engineer [Pro Tools] – John AmatielloWritten-By – Max Martin, Rami

Engineer [Assistant Mix], Edited By [Pro Tools] – Flip OsmanEngineer [Assistant Recording] – Keith Armstrong, Toby DearbornEngineer [Mix] – Dexter SimmonsEngineer [Recording] – Bob Brown , Paul FoleyProducer – Rodney JerkinsWritten-By – Franciz & LePont, Howie Dorough, Nick Carter

Acoustic Guitar – Tony BattagliaArranged By [Strings] – Veit RennConductor – Randy Thornton Drum Programming [Additional] – Jimmy BralowerEngineer [Assistant Mix] – Paul OliveiraEngineer [Assistant Recording] – Jamie Allen , Kyle Scholler, Marcelo Zolessi, Toby DearbornEngineer [Recording] – Adam Barber, Alan Armitage, George SpattaEngineer [Strings 2nd] – Clayton WarinerEngineer [Strings] – Dirk WoodruffMixed By – Chris TrevettOrchestra – L.A. East Studio String OrchestraOther [String Contractor] – Dona Kay FlintProducer – Veit RennWritten-By – Dan Hill

Bass – Tomas LindbergEngineer [Mix] – Bernard LöhrGuitar – Esbjörn ÖhrwallPercussion – Gustave LundProducer, Recorded By, Programmed By, Keyboards – David Kreuger, Per MagnussonWritten-By – A.J. McLean, Brian T. Littrell, Howie Dorough, Kevin Richardson, Nick Carter

Bass – Tomas LindbergEngineer [Assistant Vocal Recording] – Toby DearbornEngineer [Vocal Recording] – Michael TuckerGuitar – Esbjörn ÖhrwallProducer, Recorded By, Mixed By – Kristian LundinWritten-By – Andreas Carlsson, Kristian Lundin

Arranged By [Strings], Conductor [Strings] – Henrik Janson, Ulf JansonEngineer [Assistant Mix] – Johan GunnarssonEngineer [Assistant Recording] – Jamie Allen Engineer [Assistant Strings Recording] – Björn NorénEngineer [Mix] – Franciz & LePont, Mads Nilsen*Engineer [Recording] – Adam Barber, Johan GunnarssonProducer – Franciz & LePontRecorded By [Strings] – Johan GunnarssonStrings – Stockholm Session StringsWritten-By – Adam Anders, Franciz & LePont

Backing Vocals – Babyface, Backstreet BoysBass – Nathan EastEngineer [Assistant Mix] – Kyle BessEngineer [Assistant Recording] – Edward QuesadaEngineer [Mix] – Jon GassEngineer [Recording] – Paul BoutinGuitar – Michael ThompsonOther [Production Coordinator] – Ivy SkoffProducer – BabyfaceWritten-By – A.J. McLean, Brian T. Littrell, Howie Dorough, Kevin Richardson, Nick Carter

Producer – Kristian LundinRecorded By, Mixed By – Jake*, Kristian LundinWritten-By – Andreas Carlsson, Jake*, Kristian Lundin

Engineer [Assistant Mix] – Charles McCrorey, Shane StonebackEngineer [Assistant Recording] – Jamie Allen , Shane StonebackEngineer [Recording] – Alan Armitage, Chris Trevett, George SpattaGuitar – Randy BowlandMixed By – Chris TrevettProducer – Larry "Rock" CampbellWritten-By – A.J. McLean, Brian Kierulf, Josh Schwartz

Acoustic Guitar, Guitar – Esbjörn ÖhrwallEngineer [Mix] – Bernard LöhrKeyboards, Programmed By – Per MagnussonProducer, Arranged By, Recorded By – David Kreuger, Per MagnussonProgrammed By [Additional] – David KreugerWritten-By – Andreas Carlsson, Kevin Richardson, Max Martin

Arranged By – Timmy AllenArranged By [Additional Vocal & Music] – Howie DoroughArranged By [Piano & Strings] – John KatalenicConductor – Randy Thornton Engineer [Assistant Mix] – Tom BenderEngineer [Assistant Recording] – Jamie Allen , Kyle Scholler, Marcelo Zolessi, Toby DearbornEngineer [Mix] – Mick GuzauskiEngineer [Recording] – Adam Barber, Alan Armitage, George SpattaEngineer [Strings 2nd] – Clayton WarinerEngineer [Strings] – Dirk WoodruffOrchestra – L.A. East Studio String OrchestraOther [String Contractor] – Dona Kay FlintProducer – Veit RennWritten-By – Andrew Fromm, Calum MacColl, Howie Dorough