tracks 1-2, 1-6, 1-8 engineer Benny Blanco
tracks 1-1 to 1-3, 1-8, 1-10, 1-12, 1-13 engineer Emily Wright
tracks 1-10 engineer Lukasz Gottwald
tracks 1-1 engineer Matt Beckley
tracks 1-2, 1-4, 1-12 engineer Sam Holland
tracks 1-4 engineer Sam Holland
tracks 1-4 engineer Seth Waldmann
tracks 1-8 engineer Shellback
tracks video1 to video3 film director Skinny
tracks video1 to video3 film producer Partizan
mastered by Chris Gehringer
mixed by Serban Ghenea
tracks 1-1, 2-1, 2-2, 2-5 producer Ammo
tracks 1-1, 1-2, 1-6, 1-8, 1-10, 1-12, 2-2 to 2-4, 2-7 producer Benny Blanco
tracks 1-1 to 1-4, 1-7, 1-10, 1-12, 2-2 to 2-4, 2-6, 2-7 producer Dr. Luke
tracks 1-4, 1-7, 1-11 producer Max Martin
tracks 2-4 written-by Allan Peter Grigg
tracks 2-10 written-by Andre Benjamin
tracks 1-2, 1-6, 1-8, 1-10, 1-12, 2-2, 2-3, 2-4, 2-7, 2-10 written-by Benjamin Levin
tracks 1-3, 1-12 written-by Claude Kelly
tracks 1-5, 1-9, 2-8 written-by David Gamson
tracks 1-16 written-by Fraser T Smith
tracks 1-14, 2-9 written-by Greg Kurstin
tracks 2-2 written-by Jacob Kasher Hindlin
tracks 1-9 written-by Jon Ingoldsby
tracks 1-1, 1-10, 2-1, 2-2, 2-5 written-by Joshua Coleman
written-by Kesha Sebert
tracks 2-3, 2-4, 2-10 written-by Klas Åhlund
tracks 1-2 to 1-4, 1-7, 1-10, 1-12, 1-14, 2-2, 2-3, 2-4, 2-6, 2-7, 2-9, 2-10 written-by Lukasz Gottwald
tracks 1-9, 2-8 written-by Marc Nelkin
tracks 2-1 written-by Mathieu Jomphe
tracks 1-4, 1-7, 1-11, 2-4, 2-6, 2-7 written-by Max Martin
tracks 1-13, 1-15 written-by Miriam Nervo
tracks 1-6 written-by Neon Hitch
tracks 1-5 written-by Oliver Leiber
tracks 1-13, 1-15 written-by Olivia Nervo
tracks 1-1, 1-5, 1-14, 2-1, 2-6, 2-9 written-by Pebe Sebert
tracks 1-6 written-by Sean Foreman
tracks 1-4, 1-7, 1-8, 1-11 written-by Shellback
tracks 2-3, 2-10 written-by Shondrae Crawford
tracks 1-16 written-by Taio Cruz
tracks 1-13, 1-15 written-by Tom Neville
Copyright (c) RCA Records
Phonographic Copyright (p) RCA Records
Marketed By Sony Music Entertainment
Distributed By Sony Music Entertainment
Mastered At Sterling Sound
Mixed At ACME Recording, Long Beach, CA
Mixed At MixStar Studios
Produced For Kasz Money Productions, Inc.
Pressed By Sony DADC, Terre Haute
Pressed By Sony DADC, Terre Haute
℗© 2010 RCA Records
Barcode: 8 8697-80559-2 7
Matrix / Runout: DIDX-245764 1 A05 (CD 1, Variant 1)
Matrix / Runout: DIDX-572599 1 A04 (CD 2, Variant 1)
Mastering SID Code: IFPI L327 (CD 1, 2, Variant 1)
Mould SID Code: IFPI 50E4 (CD 1, Variant 1)
Mould SID Code: IFPI 50F8 (CD 2, Variant 1)
Matrix / Runout: DIDX-245764 1 A05 (CD 1, Variant 2)
Mastering SID Code: IFPI L327 (CD 1, Variant 2)
Mould SID Code: IFPI 50DD (CD 1, Variant 2)
Matrix / Runout: A02 DIDX-572599 1 (CD 2, Variant 2)
Mastering SID Code: IFPI L327 (CD 2, Variant 2)
Mould SID Code: IFPI 50E3 (CD 2, Variant 2)
Rights Society: BMI
Rights Society: ASCAP