Engineer – Jonathan SherEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer [Vocal] – Matt BeckleyProducer, Programmed By – Mike Del RioVocals [Additional] – Crista Russo, Mike Del RioWritten-By – Crista Russo, J. Kash*, Mike Del Rio

Co-producer – David KuncioEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer – The Cataracs*Producer [Vocal] – Niles Hollowell-DharWritten-By – David Kuncio, Freddy Wexler, Julia Michaels, Lindy Robbins, Niles Hollowell-Dhar

Cello – Cameron StoneEngineer – Adam Comstock, Steve HammonsEngineer [Mix] – Steve HammonsProducer [Additional] – Dubkiller, Steve HammonsProducer, Mixed By – Rock MafiaWritten-By – Adam Schmalholz, Antonina Armato, Tim James

Co-producer – Peter Thomas Engineer [Assistant] – Rob Ghost, Simon French Engineer [For Mix] – John HanesMixed By – Serban GheneaProducer – DreamlabProducer [Vocals] – DreamlabTechnician [Studio Assistant] – Joe PringleWritten-By – Bebe Rexha, Dan James*, Leah Haywood, Leroy Sibbles, Mark Myrie, Peter Thomas

Engineer – Aubry "Big Juice" Delaine*Engineer [Additional/Assistant] – Daniela RiveraEngineer [Assistant] – Ian Nicol, Jorge VelascoExecutive-Producer – Danny D*, Tim Blacksmith Instruments – Mikkel S. Eriksen, Tor Erik HermansenMixed By – Phil TanProducer – Stargate Producer [Vocal] – Dreamlab, Ester DeanRecorded By – Mikkel S. Eriksen, Miles WalkerWritten-By – Ester Dean, M.S. Eriksen*, T.E. Hermansen*

Engineer [For Mix] – John HanesMixed By – Serban GheneaProducer – Jason Evigan, The Monsters & StrangerzProducer [Additional Vocal] – Dan BookWritten-By – Alexander Izquierdo, Clarence Coffee*, Jason Evigan, Jordan Johnson , Marcus Lomax, Stefan Johnson

Backing Vocals – Livvi FrancEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer – theSUSPEX*Written-By – Jason Evigan, Livvi Franc, Mitch Allan

Backing Vocals – Freddy WexlerDrum Programming [Additional] – Partha RayEngineer – Daniel GlashausserEngineer [For Mix] – John HanesEngineer [Vocal] – DreamlabMixed By – Serban GheneaProducer – Freddy Wexler, Jai MarlonProducer [Vocal] – Freddy WexlerWritten-By – Freddy Wexler, Heather Jeanette Miley, Jai Marlon

Engineer [Assistant] – Joseph Pringle*, Rob GhostEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer – DreamlabTechnician [Studio Assistant] – Simon French Written-By – Arnthor Birgisson, Daniel James, Leah Haywood

Engineer [For Mix] – John HanesGuitar – Rome RamirezMixed By – Serban GheneaProducer – The Cataracs*Producer [Vocal] – Niles Hollowell-DharWritten-By – Julia Michaels, Lindy Robbins, Niles Hollowell-Dhar, Rome Ramirez

Backing Vocals, Piano, Percussion – Rock MafiaEngineer – Adam Comstock, Steve HammonsEngineer [Additional/Assistant] – Daniela RiveraGuitar – Aaron Dudley, Rock MafiaMixed By – Phil TanProducer – Rock MafiaProducer [Additional] – DubkillerWritten-By – Antonina Armato, David Jost, Desmond Child, Tim James

Arranged By [Additional], Producer [Additional] – AFSHeeNProducer, Programmed By, Mixed By – Toby GadWritten-By – Lindy Robbins, Selena Gomez, Toby Gad

Engineer [Assistant] – Joseph Pringle*, Simon French Mixed By – Rob GhostProducer – Dreamlab, JMIKE, Rob GhostWritten-By – Daniel James, Jeremy Coleman, Leah Haywood, Selena Gomez

Engineer [Assistant] – Joseph Pringle*, Simon French Mixed By – Daniel James, Rob GhostProducer – Brian Lee, DreamlabWritten-By – Brian Lee, Daniel James, Leah Haywood, Selena Gomez, Stuart Crichton

Engineer – Jonathan Sher, Matt BeckleyInstruments, Programmed By – A.C, Ammo Producer – Ammo Producer [Additional] – A.CProducer [Vocal], Mixed By – Matt BeckleyWritten-By – Alexander Castillo Vasquez, Fransisca Hall, J. Kash*, Joshua Coleman, Rickard Goransson*