•
will.i.am – vocals on all tracks;
MPC 3000 on tracks 1–3, 5, 6, 8–14 and 16;
Fender Rhodes on tracks 8 and 16;
Hammond b3 organ on tracks 2, 10 and 13;
Moog on track 9;
theremin on track 12;
marimbas on track 9; melody phone on track 16 •
apl.de.ap – vocals on all tracks except 4 •
Taboo – vocals on all tracks except 4, 7, 9 and 15 ;Musicians • Kevin Feyen – guitar on tracks 1, 5, 6, and 8–16 • Mike Fratantuno – bass on tracks 1–3, 5, 8, 10, 11, 13 and 16 • Terrence Yoshiaka – drums on track 5; percussion on tracks 1 and 6 • Brian Lapin – Rhodes on tracks 1, 5, 9, 11, 12 and 15; Hammond b3 organ on track 11; bass on track 9; Moog on tracks 9, 11 and 16 • Ramy Antoun – congas on track 6 • Darell Cross – drums on track 15 • J. Curtis – guitar on track 4 • DJ Drez – turntables on track 15 • Carlos Guacio – Rhodes and bass on track 4 • Peter Kim – bass on track 15 • DJ Motiv8 – turntables on tracks 3 and 8 • Matt Nabours – violin on track 14 • Tommy O. – flute on track 14 • Paul Poli – turntables on track 3 and 7 • Miles Tackett – bass on track 14 and cello on track 5 ;Guest vocals •
Kim Hill – tracks 4, 7 and 11 • Dawn Beckman – tracks 2 and 8 • Einstein Brown – track 6 • Ingrid Dupree – track 3 •
Redfoo – rap (track 9) •
Macy Gray – track 14 •
Sierra Swan & Planet Swan – track 1 ==Charts==