Piece By Piece

Bass, Drums, Guitar, Keyboards, Producer – Greg KurstinEngineer – Alex Pasco, Greg KurstinEngineer [Additional Vocal Session] – Chris Dye , John DeNoskyProducer [Vocals] – Jason HalbertWritten-By – Audra Mae, Jason Evigan, Kara DioGuardi, Mitch Allan

Arranged By [Strings], Cello, Viola, Violin – Oliver KrausBass, Drum Programming, Engineer, Piano, Producer, Programmed By [Additional], Synthesizer – Jesse ShatkinEngineer [Additional, Assistant] – Shawn DaughertyEngineer [Additional] – Todd TidwellProducer [Additional] – Oak , Steve MostynWritten-By – Jesse Shatkin, Sia Furler, Stephen Mostyn*, Warren "Oak" Felder*

Bass, Drums, Guitar, Keyboards, Producer – Greg KurstinEngineer – Alex Pasco, Greg KurstinEngineer [Additional, Assistant] – Todd TidwellEngineer [Additional] – Jesse Shatkin, Julian BurgProducer [Vocals] – Jason HalbertRecorded By [Vocal Session] – Chris Dye , John DeNoskyWritten-By – Matthew Koma

Arranged By [Orchestra], Conductor [Orchestra] – Joseph TrapaneseBass, Drum Programming, Engineer, Percussion, Piano, Producer, Programmed By [Additional], Synth – Jesse ShatkinEngineer [Additional, Assistant] – Shawn DaughertyEngineer [Additional] – Todd TidwellWritten-By – Jesse Shatkin, Maureen "Mozella" McDonald*

Arranged By [Music Preparation] – Booker WhiteArranged By [Orchestra], Conductor [Orchestra] – Joseph TrapaneseBass, Drums, Guitar, Keyboards, Producer – Greg KurstinEngineer – Greg Kurstin, Satoshi NoguchiEngineer [Additional, Assistant] – Jeremy Miller, Todd TidwellEngineer [Additional] – Alex Pasco, Julian BurgWritten-By – Greg Kurstin, Kelly Clarkson

Arranged By [Additional] – Jason LazarusArranged By [Music Preparation] – Booker WhiteArranged By [Orchestra], Conductor [Orchestra] – Joseph TrapaneseBass – David LaBruyereContractor [Orchestra] – Gina ZimmittiCoordinator [Production] – Dave Steunebrink, Lani CrumpDrums – Miles McPhersonEngineer – Christopher Dye*Engineer [Additional] – John DeNosky, Ryan GoreEngineer [John Legend Vocals, Assistant] – Kenta YonesakaEngineer [John Legend Vocals] – Jason AngelFeaturing – John LegendGuitar – Jerry McPhersonKeyboards – Cheche Alara, Jason HalbertProducer – Jason HalbertRecorded By [Orchestra] – Satoshi NoguchiWritten-By – Antonina Armato, David Jost, Joacim Persson*, Ry Cuming, Tim James

Arranged By [Background Vocals] – Fred Martin , Greg KurstinBacking Vocals – Fred Martin & The Levite Camp*Drums, Guitar, Keyboards, Producer – Greg KurstinEngineer – Alex Pasco, Greg KurstinEngineer [Additional, Assistant] – Jeremy Miller, Todd TidwellEngineer [Additional] – Jesse Shatkin, Julian BurgWritten-By – Greg Kurstin, Kelly Clarkson

Engineer – Greg Kurstin, Jesse ShatkinEngineer [Additional, Assistant] – Todd TidwellEngineer [Additional] – Alex PascoKeyboards, Producer, Programmed By – Greg KurstinWritten-By – Greg Kurstin, Sia Furler

Arranged By [Music Preparation] – Booker WhiteArranged By [Orchestra], Conductor [Orchestra] – Joseph TrapaneseBass, Chamberlin, Drums, Mellotron, Piano, Producer – Greg KurstinEngineer – Greg Kurstin, Satoshi NoguchiEngineer [Additional, Assistant] – Jeremy Miller, Todd TidwellEngineer [Additional] – Alex Pasco, Julian BurgWritten-By – Greg Kurstin, Kelly Clarkson

Bass, Keyboards, Programmed By – Eric Olson, Jason HalbertCoordinator [Production] – Dave Steunebrink, Lani CrumpDrums – Lester EstelleEngineer – Christopher Dye*, Todd TidwellEngineer [Additional] – John DeNoskyGuitar – Aben EubanksProducer – Jason HalbertProgrammed By [Additional] – Justin Womble, Rachel OrscherWritten-By – Joleen Belle, Julia Michaels, Nolan Lambroza

Backing Vocals – Nicole HurstBass, Guitar, Keyboards, Producer, Programmed By – Greg KurstinEngineer – Greg Kurstin, Jesse ShatkinEngineer [Additional, Assistant] – Todd TidwellEngineer [Additional] – Alex PascoWritten-By – Dan Rockett

Arranged By [Strings] – Joseph TrapaneseBass, Keyboards, Programmed By – Eric Olson, Jason HalbertCoordinator [Production] – Dave Steunebrink, Lani CrumpDrums – Lester EstelleEngineer – Christopher Dye*Engineer [Additional] – John DeNoskyGuitar – Tim PierceProducer – Jason HalbertProgrammed By [Additional] – Joseph Trapanese, Matt StanfieldWritten-By – Dan Keyes, Justin Tranter, Ryland Blackinton, Vaughn Oliver

Bass – Tony LucidoCoordinator [Production] – Dave Steunebrink, Lani CrumpEngineer – Christopher Dye*Engineer [Additional] – John DeNosky, Robert VenableGuitar – Jerry McPhersonKeyboards, Producer, Programmed By – Eric Olson, Jason HalbertWritten-By – Jimmy Robbins , Natalie Hemby, Shane McAnally

Backing Vocals – Nicole HurstBass, Drums, Guitar, Keyboards, Producer – Greg KurstinEngineer – Greg Kurstin, Jesse ShatkinEngineer [Additional, Assistant] – Todd TidwellEngineer [Additional] – Alex PascoHorns – The Regiment HornsWritten-By – Bonnie McKee, Greg Kurstin, Kelly Clarkson, Kelly Sheehan

Bass – Erick Serna, Jesse ShatkinDrum Programming, Engineer, Keyboards, Producer, Programmed By [Additional] – Jesse ShatkinEngineer [Additional, Assistant] – Shawn DaughertyEngineer [Additional] – Todd TidwellGuitar – Erick SernaWritten-By – Anjulie Persaud, Fransisca Hall, Jesse Shatkin, Kelly Clarkson

Backing Vocals [Additional], Written-By – Chris DeStefano, Maren Morris, Shane McAnallyBass, Electric Guitar, Instruments [All], Pedal Steel Guitar, Programmed By – Chris DeStefanoProducer [Vocals], Recorded By – Chris DeStefano, Jason Halbert