Coordinator [Production] – Andrew Luftman, Astrid Taylor, Seif Hussain, Zvi EdelmanEngineer [Mix, Assistant] – Phil SeafordEngineer [Mix] – John HanesInstrumentation By, Producer, Programmed By – Benny Blanco (3), Rock MafiaMixed By – Serban GheneaProducer [Additional] – R3drumRecorded By – Adam Comstock, Steve HammonsWritten-By – Antonina Armato, Benjamin Levin, Dave Aude*, Selena Gomez, Tim James

Backing Vocals – Julia MichaelsBass, Drums, Guitar, Piano, Producer, Recorded By – Mattman & RobinEngineer [Mix] – John HanesMixed By – Serban GheneaPercussion, Producer [Vocals], Programmed By, Synth – Mattman & Robin, Max MartinRecorded By [Assistant] – Juan Carlos TorradoWritten-By – Julia Michaels, Justin Tranter, Mattias Larsson (7), Max Martin, Robin Fredriksson

Coordinator [Production] – Andrew Luftman, Astrid Taylor, Seif Hussain, Zvi EdelmanEngineer [Vocals, Assistant], Recorded By [Vocals, Assistant] – Blake Mares, Simon French (2)Engineer [Vocals], Recorded By [Vocals] – Chris Sclafani, Rob EllmoreExecutive-Producer – Danny D*, Tim Blacksmith (3)Instrumentation By, Producer, Programmed By – Benny Blanco (3), StarGate (2)Mixed By – Mark "Spike" Stent*Mixed By [Assistant] – Geoff Swan, Matty Green (2)Written-By – Benjamin Levin, Charlotte Aitchison, Mikkel Eriksen*, Ross Golan, Tor Hermansen*

Backing Vocals – Leah HaywoodEngineer [Mix, Additional & Assistant] – Daniela RiveraEngineer [Vocals] – Rob EllmoreExecutive-Producer – Danny D*, Tim Blacksmith (3)Instruments [All] – Mikkel Eriksen*, Tor Hermansen*Mixed By – Phil TanProducer – StarGate (2)Producer [Vocals] – DreamlabRecorded By – Mike Anderson (11), Mikkel Eriksen*, Miles WalkerWritten-By – Chloe Angelides, Jacob Kasher, Julia Michaels, Mikkel Eriksen*, Tor Hermansen*

Backing Vocals – Leah HaywoodCo-producer – A$AP Rocky*, Hector Delgado (2)Engineer [Selena Vocals, Assistant], Recorded By [Selena Vocals, Assistant] – Juan Carlos TorradoEngineer [Selena Vocals], Recorded By [Selena Vocals] – Rob EllmoreFeaturing – A$AP Rocky*Mixed By – Tony MaseratiMixed By [A$AP Rocky Vocals, Assistant], Recorded By [A$AP Rocky Vocals, Assistant] – J.B. SaboiaMixed By [A$AP Rocky Vocals], Producer [A$AP Rocky Vocals], Recorded By [A$AP Rocky Vocals] – Hector Delgado (2)Mixed By [Assistant] – Tyler ScottProducer – Nick Monson, Nolan LambrozaProducer [Selena Vocals] – DreamlabWritten-By – Hector Delgado (2), Julia Michaels, Justin Tranter, Nick Monson, Nolan Lambroza, Rakim A. Mayers*, Selena Gomez

Backing Vocals – Leah HaywoodEngineer [Piano] – Will SandallsEngineer [Vocals] – Rob EllmoreInstrumentation By, Grand Piano, Producer, Programmed By – Christopher Braide*Mixed By – Tony MaseratiMixed By [Assistant] – Tyler ScottProducer [Vocals] – DreamlabWritten-By – Badrilla Bourelly*, Christopher Braide*

Backing Vocals – Julia MichaelsBass, Drums, Percussion, Producer, Producer [Vocals], Programmed By, Recorded By, Synth, Tracking By – Mattman & RobinEngineer [Mix] – John HanesMixed By – Serban GheneaRecorded By [Assistant], Tracking By [Assistant] – Juan Carlos TorradoWritten-By – Julia Michaels, Justin Tranter, Mattias Larsson (7), Robin Fredriksson, Selena Gomez

Backing Vocals – Leah Haywood, Ross GolanDrums, Engineer – Chris LawsEngineer [Assistant] – Dan Pursey*Engineer [Vocals] – Rob EllmoreKeyboards, Producer – Steve Mac (2)Mixed By – Tony MaseratiMixed By [Assistant] – Tyler ScottProducer [Vocals] – DreamlabWritten-By – Ross Golan, Steve Mac (2)

Backing Vocals, Mixed By – Rock MafiaEngineer – Adam Comstock, Danny Parra (3), Steve HammonsEngineer [Mix] – Steve HammonsGuitar – Brandon "Casanova" Hodge*, Joao Pedro Mourao*, Rock Mafia, Steve HammonsPercussion – Danny Parra (3), Hit Boy*, Rock Mafia, Steve HammonsProducer – Hit Boy*, Rock MafiaProgrammed By – Hit Boy*, HazeBanGa*Written-By – Antonina Armato, Chauncey Hollis, Julia Michaels, Justin Tranter, Selena Gomez, Tim James

Backing Vocals, Keyboards, Mixed By – Rock MafiaEngineer – Adam Comstock, Nigel Lundemo, Steve HammonsEngineer [Mix] – Steve HammonsPercussion – Nigel LundemoProducer – Hit Boy*, Rock MafiaProgrammed By – Hit Boy*, Nigel LundemoWritten-By – Adam Schmalholz, Antonina Armato, Chauncey Hollis, Selena Gomez, Tim James