Credits

Cee-Lo: Vocals
Underdogs: Producer
Jack Black: Vocals
Gavin Greenaway: Score Conductor
Henry Jackman: Additional Music
Alan Meyerson: Score Mixer
Nick Wollage: Recording
Chris Barrett: Assistant Engineer
Czarina Russell: Studio Manager
Perry Mason: Orchestra Leader
Sean Murphy: Recording
Pat Sullivan: Mastering
Slamm Andrews: Recording
Richard Robson: Technical Engineer
Adam Smalley: Music Editor
Ben Parry: Choir Coordinator
Dave Metzger: Orchestration
Julie Butchko: Music Clearance
Greg Vines: Mixing Assistant
Dan Butler: Music Business Affairs
John Ashton Thomas: Orchestration
Daniel Lerner: Technical Engineer
James McKee Smith: Additional Music
Andrew Zack: Score Coordinator
Germaine Franco: Orchestration
Jane Antonia Cornish: Orchestration
Jeff "Bucko" Biggers: Recording
Ken "Kaz" Smith: Music Coordinator
Kevin Kliesch: Orchestration
Liz McNicoll: Music Business Affairs
Pete Oso Snell: Assistant Music Editor
Steven Kofsky: Music Production Supervisor
Sunny Park: Executive in Charge of Music
Thomas Broderick: Technical Engineer