Demi Lovato (20.08.1992 Albuquerque, New Mexico) - vocal, piano (5,11), background vocals (5,11), keys (11)
Guitar and bass by Ilya Salmanzadeh (1)
Keys by Ilya Salmanzadeh and Max Martin (1)
Programming by Ilya Salmanzadeh and Max Martin (1)
Horn arrangement by Jonas Thander (1)
Saxophone by Jonas Thander (1)
Trombone by Staffan Findin (1)
Trumpets by Stefan Persson and Karl Olandersson (1)
Live drums by Peter Carlsson (1)
Percussion by Rickard Goransson, Ilya and Max Martin (1)
Background vocals by Savan Kotecha, Ilya and Oscar Holter (1)
Guitars, drums, percussion and programming by Ali Payami (2)
Programming by Max Martin (2)
Background vocals by Savan Kotecha (2)
Keys by Jason Evigan and Babydaddy (3)
Additional background vocals by Livvi Franc (3)
Additional programming by Isaiah Tejada and Spencer Bastian (3)
Keys, guitar and percussion by Johan Carlsson (4)
Programming by Ali Payami (4)
Strings arranged by Mattias Bylund (4)
Cello by David Bukovinszky (4)
Strings by Mattias Bylund (4)
Background vocals by Colette Falla, Demi Lovato and Johan Carlsson (4)
Drum programming by Laleh Pourkarim (5,11)
Piano by Gustaf Thorn and Laleh Pourkarim (5)
Cello by Eru Matsumoto (5)
Cello arranged by Laleh Pourkarim (5)
Strings arranged by Gustaf Thorn (5)
Bass by Laleh Pourkarim (5)
Synth by Laleh Pourkarim and Gustaf Thorn (5)
Background vocals by Laleh Pourkarim and Gustaf Thorn (5,11)
Drums by Chris Laws (6,9)
All keyboards by Steve Mac (6,9)
All instrumentation by Jason Evigan and Steve Mac (7)
Background vocals by Ryan Tedder (8)
All instruments by Mikkel S. Eriksen and Tor Hermansen (8)
Guitars by Paul Gendler (9)
Background vocals by Ina Wroldsen (9)
Keys by Gustaf Thorn (11)
Organ by Gustaf Thorn (11)
Synth by Laleh Pourkarim (11)
FX and drums programmed by Laleh Pourkarim and Mag (11)
String arrangements by Gustaf Thorn (11)
Bass by Gustaf Thorn (11)
Piano by Gustaf Thorn (11)
Bass by Laleh Pourkarim (11)
Synth and programming by Laleh Pourkarim and Gustaf Thorn (11)
Background vocals by Gustaf Thorn and Laleh Pourkarim (11)
Strings by Erik Arvinder (11)
Percussion by Laleh Pourkarim (11)
Organ by Laleh Pourkarim and Gustaf Thorn (11)
Guitar by Laleh Pourkarim (11)
Written by Max Martin, Savan Kotecha, Ilya Salmanzadeh and Demi Lovato (1)
Written by Savan Kotecha, Max Martin, Alexander Kronlund, Ali Payami and Demi Lovato (2)
Written by Olivia Waithe, Jason Evigan and Scott Hoffman (3)
Written by Johan Carlsson, Dalton Grant and Susan H Catanzaro (4)
Written by Demi Lovato, Laleh Pourkarim and Gustaf Thorn (5)
Written by Julia Michaels, Steve Mac, Demi Lovato and Amethyst Amelia Kelly (6)
Written by Demi Lovato, Julia Michaels, Jason Evigan, Steve Mac Sarah Mitchell (7)
Written by Ryan Tedder, Nicole Morier, Tor Hermansen and Mikkel Eriksen (8)
Written by teve Mac Ina Wroldsen (9)
Written by Demi Lovato and Laleh Pourkarim (10,11)
Produced by Max Martin and Ilya Salmanzadeh (1)
Produced by Ali Payami and Max Martin (2)
Produced by Jason Evigan (3)
Additional productions by Babydaddy (Scott Hoffman) (3)
Vocals produced by Mitch Allan (3,7,8)
Produced by Johan Carlsson and Ali Payami (4)
Vocals produced by Johan Carlsson and Peter Carlsson (4)
Produced by Laleh Pourkarim (5,10,11)
Produced by Steve Mac (6,9)
Produced by Jason Evigan and Steve Mac (7)
Produced by StarGate (Mikkel Storleer Eriksen & Tor Erik Hermansen) (8)
Executive produced by Tim Blacksmith and Danny D. (8)
Vocals produced by Laleh Pourkarim (11)
Engineered by Sam Holland (1,2)
Engineered by Sam Holland and Noah "Mailbox" Passovoy (4)
Engineered by Laleh Pourkarim (5,10,11)
Assistant engineered by Gustaf Thorn (5,11)
Engineered by Dann Pursey and Chris Laws (6,9)
Additional engineering by Chris Laws (7)
Additional and assistant engineering by Daniela Rivera (8)
Assistant engineered/Assistant produced by Gustaf Thorn (10)
Mixed by Serban Ghenea (1-7,9-11)
Engineered for mix by John Hanes Mixed by Phil Tan (8)
Mastered by Tom Coyne Assisted by Randy Merrill at Sterling Sound, NYC
2015 (Hollywood Records/ Island Records D001882902 / PMR063) CD (US)
2015 (Hollywood Records/ Island Records D001882902) CD (US)
2015 (Hollywood Records/ Island Records D002293902) CD,dix (US) (54:58)
2015 (Hollywood Records/ Island Records 0050087335069) CD,dix (EU/Indonesia)
2015 (Hollywood Records/ Island Records 0050087337124(86) (EU/PL/NL) (39:03) 2015 (Hollywood Records/ Island Records 005008733506) CD,dix (BRA)
2015 (Hollywood Records/ Island Records 8733506) CD,dix (ARG)
2015 (Hollywood Records/ Island Records 4605026716308( CD (RUS)
