Backing Vocals, Edited By [Additional Vocal Editing] – Kristoffer FogelmarkEdited By [Additional Vocal Editing] – Albin NedlerEngineer [For Mix] – John HanesGuitar [Additional] – Niall HoranMixed By – Serban Ghenea, Serban GheneaProducer, Instruments, Programmed By, Bass – RamiProducer, Written-By, Programmed By, Instruments, Guitar, Backing Vocals – Carl Falk Written-By – Rami YacoubWritten-By, Backing Vocals – Savan Kotecha

Backing Vocals – 1D FansBacking Vocals, Edited By [Vocals] – Albin NedlerEngineer [For Mix] – John HanesEngineer [Vocal] – Alex OrietGuitar [Additional] – Niall HoranMixed By – Serban GheneaProducer, Instruments, Programmed By, Bass, Edited By [Vocals], Recorded By [Vocals] – RamiProducer, Written-By, Programmed By, Instruments, Guitar, Backing Vocals, Edited By [Vocals], Recorded By [Vocals] – Carl Falk Written-By – Albin Nedler, Kristian Lundin, Rami Yacoub, Shellback Written-By, Backing Vocals – Savan KotechaWritten-By, Backing Vocals, Edited By [Vocals] – Kristoffer Fogelmark

Acoustic Guitar, Bass Guitar, Electric Guitar – Chris LeonardBacking Vocals – Tommy CulmMixed By, Producer – Jake GoslingWritten-By – Ed Sheeran, Fiona Bevan

Engineer [Assistant] – Ian FranzinoMixed By – Ash HowesProducer, Written-By, Instruments, Recorded By, Engineer – Julian BunettaWritten-By – Jamie ScottWritten-By, Co-producer, Instruments – John Ryan

Arranged By [Strings], Recorded By [Strings], Edited By [Strings] – Mattias BylundCello – David BukovinszkyEngineer [For Mix] – John HanesEngineer [Vocals] – Alex OrietMixed By – Serban Ghenea, Serban GheneaProducer, Bass, Instruments, Programmed By – RamiProducer, Recorded By, Written-By, Instruments, Programmed By, Backing Vocals, Edited By [Vocals], Recorded By [Vocals] – Kristoffer FogelmarkProducer, Recorded By, Written-By, Instruments, Programmed By, Edited By [Vocals], Recorded By [Vocals] – Albin NedlerProducer, Written-By, Instruments, Programmed By, Guitar – Carl Falk Violin – Mattias JohanssonWritten-By – Liam Payne, Louis Tomlinson, Rami Yacoub, Savan Kotecha, Zain Malik

Backing Vocals, Edited By [Vocals] – Kristoffer FogelmarkEdited By [Vocals] – Albin NedlerEngineer [For Mix] – John HanesEngineer [Vocal] – Alex OrietMixed By – Serban GheneaProducer, Recorded By, Programmed By, Instruments, Bass, Edited By [Vocals], Recorded By [Vocals] – RamiProducer, Recorded By, Written-By, Instruments, Programmed By, Guitar, Edited By [Vocals], Recorded By [Vocals] – Carl Falk Producer, Written-By, Instruments, Programmed By, Bass, Backing Vocals – Shellback Written-By – Kristian Lundin, Rami YacoubWritten-By, Backing Vocals – Savan Kotecha

Engineer [For Mix] – John HanesInstruments, Programmed By – Sam HollanderMixed By – Serban GheneaProducer [Vocal], Vocals [Additional], Engineer – Emily WrightProducer, Instruments, Programmed By – Cirkut*, Dr. LukeProducer, Vocals [Additional], Instruments, Programmed By, Engineer – KoOoLkOjAk*Vocals [Additional] – Ava James, Clint Gibbs, Juniper Written-By – Allan Grigg*, Sam HollanderWritten-By, Vocals [Additional] – Henry Walter, Lukasz GottwaldWritten-By, Vocals [Additional], Instruments, Programmed By – Peter Svensson

Arranged By [Strings], Recorded By [Strings], Edited By [Strings] – Mattias BylundBacking Vocals, Edited By [Vocals] – Kristoffer FogelmarkCello – David BukovinszkyEdited By [Vocals] – Albin NedlerEngineer [For Mix] – John HanesEngineer [Vocal] – Alex OrietMixed By – Serban GheneaProducer, Recorded By, Instruments, Programmed By, Bass, Edited By [Vocals], Recorded By [Vocals] – RamiProducer, Recorded By, Written-By, Instruments, Programmed By, Guitar, Edited By [Vocals], Recorded By [Vocals] – Carl Falk Violin – Mattias JohanssonWritten-By – Rami YacoubWritten-By, Backing Vocals – Savan Kotecha

Co-producer – John Ryan Mixed By – Ash HowesProducer, Recorded By – Julian BunettaWritten-By – Danny Jones , Dougie Poynter, Tom Fletcher

Mixed By, Producer – Jake GoslingWritten-By – Alexander Gowers, Ed Sheeran, Robert Conlon

Mixed By – Serban GheneaProducer – RamiProducer, Recorded By, Written-By – Albin Nedler, Kristoffer FogelmarkProducer, Written-By – Carl Falk Written-By – Harry Styles, Liam Payne, Louis Tomlinson, Niall Horan, Rami, Savan Kotecha

Co-producer – John Ryan Mixed By – Ash HowesProducer, Recorded By – Julian BunettaWritten-By – Peter Wallevik, Tebey Ottoh, Tommy Lee James, Tommy P. Gregersen

Arranged By [Strings] – Chris Elliot*Bass – Malcolm Moore Drums – Karl BrazilEngineer – Rupert Coulson, Sam MillerGuitar – Luke Potashnik*Mixed By, Producer, Written-By, Guitar [Additional], Keyboards – Steve RobsonWritten-By – Harry Styles, Liam Payne, Lindy Robbins, Louis Tomlinson, Niall Horan, Wayne Hector, Zain Malik

Engineer [Assistant] – Ian FranzinoMixed By – Ash HowesWritten-By – Jamie Scott, Tim Wood Written-By, Co-producer, Instruments – John Ryan Written-By, Producer, Instruments, Recorded By, Engineer – Julian Bunetta

Engineer [Assistant] – Ian FranzinoWritten-By – Tebey Ottoh, Tim Wood , Tommy Lee JamesWritten-By, Co-producer, Instruments – John Ryan Written-By, Producer, Instruments, Recorded By, Engineer, Mixed By – Julian Bunetta

Backing Vocals – Johan SchusterBacking Vocals, Edited By [Vocals] – Kristoffer FogelmarkEdited By [Vocals] – Albin Nedler, Carl BjörsellEngineer [For Mix] – John HanesEngineer [Vocals] – Alex Oriet, Franny GrahamMixed By – Serban GheneaProducer, Programmed By, Instruments, Bass, Edited By [Vocals], Recorded By [Vocals] – RamiWritten-By – Rami Yacoub, Savan KotechaWritten-By, Producer, Guitar, Programmed By, Instruments, Bass – Shellback Written-By, Producer, Guitar, Programmed By, Instruments, Edited By [Vocals], Recorded By [Vocals] – Carl Falk

Backing Vocals, Edited By [Vocals] – Kristoffer FogelmarkEdited By [Vocals] – Albin Nedler, Carl BjörsellEngineer – Alex OrietEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer [Additional Production], Guitar – Peter SvenssonProducer, Programmed By, Instruments, Bass, Edited By [Vocals], Recorded By [Vocals] – RamiWritten-By – Harry Styles, Liam Payne, Louis Tomlinson, Rami YacoubWritten-By, Backing Vocals – Savan KotechaWritten-By, Producer, Instruments, Programmed By, Guitar, Edited By [Vocals], Recorded By [Vocals] – Carl Falk

Edited By [Vocals], Mixed By – Jon RezinMixed By – Jon RezinProducer [Vocals] – Philipe-Marc Anquetil*Producer [Vocals], Recorded By [Vocals] – Iain JamesProducer, Written-By, Instruments, Programmed By, Edited By [Vocals] – Toby GadRecorded By – Lain JamesWritten-By – Lindy Robbins, Trevor Dahl

Backing Vocals, Edited By [Vocals] – Kristoffer FogelmarkEdited By [Vocals] – Albin NedlerEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer, Instruments, Programmed By, Edited By [Vocals], Recorded By [Vocals] – RamiProducer, Written-By, Instruments, Programmed By, Backing Vocals, Edited By [Vocals], Recorded By [Vocals] – Carl Falk Written-By – Rami YacoubWritten-By, Backing Vocals – Savan Kotecha

Mixed By – Ash Howes, Ash HowesProducer, Written-By, Instruments – Tom Fletcher Producer, Written-By, Instruments, Engineer – Danny Jones Written-By – Dougie Poynter, Harry Styles, Liam Payne, Louis Tomlinson, Niall Horan, Zain Malik