Credits

Jay-Z: Vocals
Timbaland: Producer
Ed Calle: Conductor, Arranger
Justin Timberlake: Vocals
Ne-Yo: Producer
J. Peter Robinson: Artwork, Design
Carl Sturken: Executive Producer, Multi-Instruments
Evan Rogers: Producer, Executive Producer, Backing Vocals
Kuk Harrell: Engineer
Manny Marroquin: Mixing
Phil Tan: Mixing
Chris Gehringer: Mastering
Mike Tocci: Engineer
Anthony Kilhoffer: Engineer
Carter Administration : Executive Producer
Chris Steinmetz: Engineer
Deborah Mannis-Gardner: Sample Clearance
Doug Joswick: Package Production
Hannon B. Lane: Producer, Keyboards
Jay Brown: A & R
John Kricker: Trombone
Josh Houghkirk: Engineer, Mixing
Kevin "KD" Davis: Mixing
Stevie Blacke: Violin, Cello
Terese Joseph: A & R
Mikkel S. Eriksen: Engineer, Arranger
Al Hemberger: Engineer, Mixing
Chris "Tricky" Stewart: Programming, Producer, Keyboards
Dana Teboe: Trombone
Doug Michels: Trumpet
Espen Lind: Guitar
Greg Ogan: Engineer
Mathieu Lejeune: Engineer
Phillip Ramos: Assistant Engineer
Tyran "Ty Ty" Smith: A & R
William Durst: Engineer
Roy Matthews: Mixing Assistant
Dusty Robbennolt: Assistant Engineer
Grayson Taylor: Assistant Engineer
Jon Marius Aareskjold: Engineer
Marc Jordan: Management
Rob Heselden: Production Coordination
Bernt Rune Stray: Guitar
Roberto Deste: Photography
Daniel Laporte: Engineer
Richard "Rico" Gonzales: Engineer
Angela Allen: Marketing Coordinator
Tim Sturges: Assistant Engineer
Marcos Tovar: Assistant Engineer
Fabienne Leys: Artist Coordination
Ciarra Pardo: Artwork, Design
Demacio Castelleon: Engineer, Mixing
Rodrigo Gallardo: Trumpet
Augie Haas: Trumpet
Adam Lowenberg: Marketing, Mastering
Dan Satterwhite: Tuba