Katy Perry ‎– Prism

Coordinator [Production Coordination] – Irene RichterEngineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory Bice, Elliott Lanam, Justin Fox, Rachael FindlenEngineer [For Mix] – John HanesInstruments [All], Programmed By – Cirkut*, Dr. Luke, Max MartinMixed By – Serban GheneaProducer – Cirkut*, Dr. Luke, Max MartinSitar – Ronobir LahiriSitar [Coral] – Dr. LukeTabla – Aditya KalyanpurViolin [Double] – Gingger Shankar*Vocals – Katy PerryWritten-By – Bonnie McKee, Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin

Alto Saxophone – Alex FosterArranged By [Horn Arrangement] – Lenny PickettBand – Saturday Night Live Band*Baritone Saxophone – Ron BlakeCoordinator [Production Coordination] – Irene RichterDrums [Additional] – Steven WolfEngineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory Bice, Elliott Lanam, Eric Eylands, Justin Fox, Rachael FindlenEngineer [For Mix] – John HanesEngineer [Horns, Assisted By] – Kenta YonesakaEngineer [Horns] – Dave O'DonnellInstruments [All], Programmed By – Cirkut*, Dr. Luke, Max MartinMixed By – Serban GheneaProducer – Cirkut*, Dr. Luke, Max MartinTenor Saxophone – Lenny PickettTrombone – Steve TurreTrumpet – Earl GardnerVocals – Katy PerryWritten-By – Bonnie McKee, Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin

Backing Vocals – Sabina Ddumba, Tensta Gospel ChoirEngineer – Michael Ilbert, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory BiceEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer – Klas Ahlund*, Max MartinProgrammed By – Klas Ahlund*, Max MartinVocals – Katy PerryWritten-By – Adam Baptiste, Camela Leierth*, Katy Perry, Klas Ahlund*, Max Martin

Coordinator [Production Coordination] – Irene RichterEngineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory Bice, Eric Eylands, Justin Fox, Rachael FindlenEngineer [For Mix] – John HanesInstruments [All], Programmed By – Cirkut*, Dr. Luke, Max MartinMixed By – Serban GheneaProducer – Cirkut*, Dr. Luke, Max MartinVocals – Katy PerryWritten-By – Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin

Backing Vocals – Katy Perry, Max MartinCoordinator [Production Coordination] – Irene RichterEngineer – Clint Gibbs, Michael Ilbert, Mike "Crazy Mike" Foster*, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory Bice, Elliott Lanam, Eric Eylands, Justin Fox, Rachael FindlenEngineer [For Mix] – John HanesFeaturing – Juicy JInstruments [All], Programmed By – Cirkut*, Dr. Luke, Max MartinMixed By – Serban GheneaProducer – Cirkut*, Dr. Luke, Max MartinVocals – Juicy J, Katy PerryVocals [Additional] – Ava JamesWritten-By – Henry Walter, Jordan Houston, Katy Perry, Lukasz Gottwald, Max Martin, Sarah Theresa Hudson*

Engineer – Michael Ilbert, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory BiceEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer – Klas Ahlund*, Max MartinProgrammed By – Klas Ahlund*, Max MartinVocals – Katy PerryWritten-By – Katy Perry, Klas Ahlund*, Max Martin

Coordinator [Production Coordination] – Irene RichterEngineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory Bice, Eric Eylands, Justin Fox, Rachael FindlenEngineer [For Mix] – John HanesInstruments [All], Programmed By – Cirkut*, Dr. Luke, Max MartinMixed By – Serban GheneaProducer – Cirkut*, Dr. Luke, Max MartinVocals – Katy PerryWritten-By – Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin

Coordinator [Production Coordination] – Irene RichterEngineer – Clint Gibbs, Michael Ilbert, Peter Carlsson (3), Sam HollandEngineer [Assisted By] – Cory Bice, Elliott Lanam, Justin Fox, Rachael FindlenEngineer [For Mix] – John HanesInstruments [All], Programmed By – Cirkut*, Dr. Luke, Max MartinMixed By – Serban GheneaProducer – Cirkut*, Dr. Luke, Max MartinVocals – Katy PerryWritten-By – Bonnie McKee, Henry Walter, Katy Perry, Lukasz Gottwald, Max Martin

Engineer – Christian "Bloodshy" Karlsson*, Magnus*, Vincent PontareEngineer [For Mix] – John HanesInstruments [All], Programmed By – Christian "Bloodshy" Karlsson*, Magnus*, Vincent PontareMixed By – Serban GheneaProducer – Christian "Bloodshy" Karlsson*Vocals – Katy PerryWritten-By – Christian "Bloodshy" Karlsson*, Katy Perry, Mangus Lidehall*, Max Martin, Vincent Pontare

Coordinator [Production Coordination] – Andrew "McMuffin" Luftman*, Scott "Yarmov" Yarmovsky*Engineer – Mikkel Storleer Eriksen*Engineer [Assisted By] – Chris "Anger Management" Sclafani*Engineer [For Mix] – John HanesGuitar [Additional] – John MayerInstruments [All], Programmed By – Benny Blanco (3), Stargate (2)Management [Stargate Managed By] – Danny D.*, Tim Blacksmith (3)Mixed By – Serban GheneaProducer – Benny Blanco (3), Stargate (2)Vocals – Katy PerryWritten-By – Benjamin Levin, Katy Perry, Mikkel Storleer Eriksen*, Tor Erik Hermansen

Engineer – Greg Kurstin, Jesse ShatkinEngineer [Additional] – Alex PascoGuitar, Keyboards, Programmed By – Greg KurstinMixed By – Manny MarroquinMixed By [Assisted By] – Chris Galland, Delbert BowersProducer – Greg KurstinVocals – Katy PerryWritten-By – Greg Kurstin, Katy Perry, Sia Furler

Drums, Piano, Synth, Programmed By – Greg WellsEngineer – Ian MacGregorEngineer [For Mix] – John HanesMixed By – Serban GheneaProducer – Greg Wells, Katy PerryVocals – Katy PerryWritten-By – Greg Wells, Katy Perry