Black Eyed Peas

will.i.am - vocals on all tracks, production on tracks 2, 3, 5, 6, 7, 10, 12, 13, 14, 15*, and 16*,

writing on all tracks, keyboards on tracks 2, 3, 5, 7, 8, 10, 12, and 13, drum programming

on tracks, 2, 3, 5, 6, 10, 12, 13, 14, and 15*.

apl.de.ap - vocals on all tracks except 5, production on tracks 4, 8, and 9, writing on all tracks except 5, 

drum programming on tracks 4, 8, and 9.

Taboo - vocals on all tracks except 5, writing on tracks 1, 2, 8, 11, and 13. 

Kim Hill - vocals on tracks 4, 6, 9, 11, 13, 14, 15*, and 16*, writing on track 7. 

Esthero - vocals on tracks 2, 8, and 16*. 

George Pajon - guitar on tracks 2, 3, 4, 5, 6, 9, 10, 13, and 14, writing on tracks 3, 5, 6, 9, 13, and 14. 

Printz Board - keyboards on tracks 2 and 8, horns on track 13. 

Mike Fratantuno - bass on tracks 6, 9, 10, and 14, and 16*, guitar on tracks 14 and 15*,

keyboards on track 14, writing on tracks 6, 10, and 14

DJ Motiv8 - turntables on tracks 2, 3, 4, 8, 11, and 14. 

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Featured Vocalists

Chali 2 na - vocals on track 3, writing on track 3. 

De La Soul - vocals on track 5, writing on track 5. 

Les Nubians - vocals on track 7, writing on track 7. 

Wyclef Jean - vocals on track 11, guitar on track 11, bass on track 11, writing on track 11. 

Macy Gray - vocals on track 14, writing on track 14. 

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Featured Musicians

DJ Premier - turntables on track 1. 

Miles Tackett - bass on track 4. 

Jerry Duplessis - bass on track 11, writing on track 11. 

Adru Sierra - horns on track 13. 

Jose Espinosa - horns on track 13.

Eulises Bella - horns on track 13.

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Additional Writers

DJ Premier - writing on track 1, production on track 1. 

Tony Butler - writing on track 2. 

Sylvester Stweart - writing on track 2. 

Clifford Smith - writing on track 3. 

Aldane Browne - writing on track 3. 

Daisey Age - writing on track 5. 

John Collins - writing on track 9. 

Bill Withers - writing on track 9. 

Arthur Baker - writing on track 10.  

John Robie - writing on track 10. 

Kevin Donovan - writing on track 10. 

Robert Allen - writing on track 10. 

James Brown - writing on track 11. 

Charles Bobbit - writing on track 11.  

Bob Byrd - writing on track 13. 

Rhett Lawrence - writing on track 14, production on track 14. 

Sting - writing on track 16*. 

Ron Fair - production on track 16*. 

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Management

Polo Molina - group manager. 

Tatiana Litvin - Creative A&R. 

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