Credits

Gym Class Heroes: Producer
Serban Ghenea: Mixing
Ryan Tedder: Engineer, Instrumentation, Producer
Benny Blanco: Drums, Engineer, Keyboards, Producer, Programming, Vocal Editing
Adam Levine: Vocals
John Hanes: Mixing Engineer
Manny Marroquin: Mixing
Mark "Exit" Goodchild: Engineer
Noel Zancanella: Instrumentation, Producer
Travis McCoy: Vocals
Neon Hitch: Vocals
Pete Wentz: Executive Producer
Emile Haynie: Keyboards, Producer, Programming
Robopop: Drums, Guitar, Keyboards, Producer, Programming
Andrew Wright: Engineer, Vocal Engineer
Chris Gehringer: Mastering
Eric Roberts: Bass
Tim Roberts: Assistant Engineer, Mixing Assistant
Rob Freeman: Engineer
Jonathan Daniel: Management
Bob McLynn: Management
Matt McGinley: Drums
Disashi Lumumba-Kasongo: Guitar, Vocals
Erik Madrid: Assistant
Scott Nagelberg: Management
Zvi Edelman: A & R
Evan Leake: Design, Illustrations
Smith Carlson: Engineer
Phillip Peterson: Strings
Quang Le: Photography
Chris Galland: Assistant
Jeremy "J Boogs" Levin: Production Coordination
Andrew Luftman: A & R
Phil Seaford: Assistant Engineer
Ammar Malik: Backing Vocals
David Silberstein: Production Coordination
Austin Bisnow: Fender Rhodes
Marc DeJesus: Backing Vocals
Tore Nissen: Engineer
Tyler Pursel: Guitar, Keyboards, Vocals
Scott Varmovsky: Assistant