A2		Legendary Lovers Coordinator [Production Coordination] – Irene Richter Engineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice, Elliott Lanam, Justin Fox, Rachael Findlen Engineer [For Mix] – John Hanes Instruments [All], Programmed By – Cirkut, Dr. Luke, Max Martin Mixed By – Serban Ghenea Producer – Cirkut, Dr. Luke, Max Martin Sitar – Ronobir Lahiri Sitar [Coral] – Dr. Luke Tabla – Aditya Kalyanpur Violin [Double] – Gingger Shankar* Vocals – Katy Perry Written-By – Bonnie McKee, Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin
A3		Birthday Alto Saxophone – Alex Foster Arranged By [Horn Arrangement] – Lenny Pickett Band – Saturday Night Live Band* Baritone Saxophone – Ron Blake Coordinator [Production Coordination] – Irene Richter Drums [Additional] – Steven Wolf Engineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice, Elliott Lanam, Eric Eylands, Justin Fox, Rachael Findlen Engineer [For Mix] – John Hanes Engineer [Horns, Assisted By] – Kenta Yonesaka Engineer [Horns] – Dave O'Donnell Instruments [All], Programmed By – Cirkut, Dr. Luke, Max Martin Mixed By – Serban Ghenea Producer – Cirkut, Dr. Luke, Max Martin Tenor Saxophone – Lenny Pickett Trombone – Steve Turre Trumpet – Earl Gardner Vocals – Katy Perry Written-By – Bonnie McKee, Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin
A4		Walking On Air Backing Vocals – Sabina Ddumba, Tensta Gospel Choir Engineer – Michael Ilbert, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice Engineer [For Mix] – John Hanes Mixed By – Serban Ghenea Producer – Klas Ahlund, Max Martin Programmed By – Klas Ahlund, Max Martin Vocals – Katy Perry Written-By – Adam Baptiste, Camela Leierth, Katy Perry, Klas Ahlund, Max Martin
B5		Unconditionally Coordinator [Production Coordination] – Irene Richter Engineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice, Eric Eylands, Justin Fox, Rachael Findlen Engineer [For Mix] – John Hanes Instruments [All], Programmed By – Cirkut, Dr. Luke, Max Martin Mixed By – Serban Ghenea Producer – Cirkut, Dr. Luke, Max Martin Vocals – Katy Perry Written-By – Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin
B6		Dark Horse Backing Vocals – Katy Perry, Max Martin Coordinator [Production Coordination] – Irene Richter Engineer – Clint Gibbs, Michael Ilbert, Mike "Crazy Mike" Foster, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice, Elliott Lanam, Eric Eylands, Justin Fox, Rachael Findlen Engineer [For Mix] – John Hanes Featuring – Juicy J Instruments [All], Programmed By – Cirkut, Dr. Luke, Max Martin Mixed By – Serban Ghenea Producer – Cirkut, Dr. Luke, Max Martin Vocals – Juicy J, Katy Perry Vocals [Additional] – Ava James Written-By – Henry Walter, Jordan Houston, Katy Perry, Lukasz Gottwald, Max Martin, Sarah Theresa Hudson
B7		This Is How We Do Engineer – Michael Ilbert, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice Engineer [For Mix] – John Hanes Mixed By – Serban Ghenea Producer – Klas Ahlund, Max Martin Programmed By – Klas Ahlund, Max Martin Vocals – Katy Perry Written-By – Katy Perry, Klas Ahlund*, Max Martin
C8		International Smile Coordinator [Production Coordination] – Irene Richter Engineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice, Eric Eylands, Justin Fox, Rachael Findlen Engineer [For Mix] – John Hanes Instruments [All], Programmed By – Cirkut, Dr. Luke, Max Martin Mixed By – Serban Ghenea Producer – Cirkut, Dr. Luke, Max Martin Vocals – Katy Perry Written-By – Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin
C9		Ghost Coordinator [Production Coordination] – Irene Richter Engineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam Holland Engineer [Assisted By] – Cory Bice, Elliott Lanam, Justin Fox, Rachael Findlen Engineer [For Mix] – John Hanes Instruments [All], Programmed By – Cirkut, Dr. Luke, Max Martin Mixed By – Serban Ghenea Producer – Cirkut, Dr. Luke, Max Martin Vocals – Katy Perry Written-By – Bonnie McKee, Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin
C10		Love Me Engineer – Christian "Bloodshy" Karlsson, Magnus, Vincent Pontare Engineer [For Mix] – John Hanes Instruments [All], Programmed By – Christian "Bloodshy" Karlsson, Magnus, Vincent Pontare Mixed By – Serban Ghenea Producer – Christian "Bloodshy" Karlsson* Vocals – Katy Perry Written-By – Christian "Bloodshy" Karlsson, Katy Perry, Mangus Lidehall, Max Martin, Vincent Pontare
D11		This Moment Coordinator [Production Coordination] – Andrew "McMuffin" Luftman, Scott "Yarmov" Yarmovsky Engineer – Mikkel Storleer Eriksen* Engineer [Assisted By] – Chris "Anger Management" Sclafani* Engineer [For Mix] – John Hanes Guitar [Additional] – John Mayer Instruments [All], Programmed By – Benny Blanco (3), Stargate (2) Management [Stargate Managed By] – Danny D., Tim Blacksmith (3) Mixed By – Serban Ghenea Producer – Benny Blanco (3), Stargate (2) Vocals – Katy Perry Written-By – Benjamin Levin, Katy Perry, Mikkel Storleer Eriksen, Tor Erik Hermansen
D12		Double Rainbow Engineer – Greg Kurstin, Jesse Shatkin Engineer [Additional] – Alex Pasco Guitar, Keyboards, Programmed By – Greg Kurstin Mixed By – Manny Marroquin Mixed By [Assisted By] – Chris Galland, Delbert Bowers Producer – Greg Kurstin Vocals – Katy Perry Written-By – Greg Kurstin, Katy Perry, Sia Furler
D13		By The Grace Of God Drums, Piano, Synth, Programmed By – Greg Wells Engineer – Ian MacGregor Engineer [For Mix] – John Hanes Mixed By – Serban Ghenea Producer – Greg Wells, Katy Perry Vocals – Katy Perry Written-By – Greg Wells, Katy Perry

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