Keyboards – Weldon IrvineProducer, Bass, Congas, Percussion – Mos DefWritten-By – D. Smith*

Performer [Sample From "The Warnings"] – David AxelrodProducer – Diamond*Producer [Additional Production], Bass, Keyboards – Mos DefRecorded By, Mixed By – David KennedyScratches [Cuts] – Etch-A-Sketch*Written-By – D. Smith*, J. Kirkland*Written-By [Sample From "The Warnings"] – D. Axelrod*, M. Axelrod*

Producer – 88 Keys*Recorded By, Mixed By – David KennedyWritten-By – C. Njapa*, D. Smith*

Performer [Sample From "One Step"] – Aretha FranklinProducer – AyatollahRecorded By, Mixed By – David KennedyWritten-By – D. Smith*, L. Dorell*Written-By [Sample From "One Step"] – C. Singleton*, E. Snyder*

Producer – 88 Keys*Recorded By, Mixed By – David KennedyWritten-By – C. Njapa*, D. Smith*

Featuring – Busta RhymesMixed By – David KennedyProducer – Mr. KhaliylRecorded By – Johnny WhyWritten-By – A. Dillon*, D. Smith*, T. Smith*

Producer – Ali Shaheed Muhammed*Written-By – A. Muhammed*, D. Smith*

Electric Piano [Fender Rhodes] – Will I AmOrgan [Hammond] – Weldon IrvineProducer – David Kennedy, Mos DefWritten-By – D. Smith*, D. Kennedy*

Producer – Psycho LesWritten-By – D. Smith*, L. Fernandez*

Guitar – Johnny WhyProducer – Psycho LesProducer [Additional Production], Drums, Bass, Written-By [Outro] – Mos DefWritten-By – D. Smith*, L. Fernandez*

Featuring – Talib KweliProducer – AyatollahWritten-By – D. Smith*, L. Dorell*, T. K. Greene*

Featuring, Vocals – Vinia MojicaProducer – Etch-A-Sketch*Producer [Additional Production], Arranged By [Strings] – Mos Def, Weldon IrvineWritten-By – D. Smith*, T. Dunn*, W. Erving*Written-By [Strings] – Weldon Irvine

Performer [Elements Of "Under The Bridge"] – Red Hot Chili PeppersPerformer [Sample From "The Masquerade Is Over"] – David PorterPerformer [Sample From "We Live In Brooklyn, Baby"] – Roy AyersProducer [1st Move] – Ge-ologyProducer [2nd Move] – Dave Kennedy*, Mos DefProducer [3rd Move] – Mos DefWritten-By – D. Smith*, D. Kennedy*, G. Young*Written-By [Elements Of "Under The Bridge"] – Kiedis*, Smith*, Frusciante*, Balzary*Written-By [Sample From "We Live In Brooklyn, Baby"] – H. Whitaker*

Producer – Etch-A-Sketch*Recorded By, Mixed By – David KennedyWritten-By – D. Smith*, T. Dunn*, W. Irvine*Written-By [Keyboards], Arranged By [Keyboards] – Weldon Irvine

Featuring – Q-TipProducer – D-Prosper*Producer [Additional Production], Congas, Percussion – Mos DefWritten-By – D. Prosper, D. Smith*, J. Davis*

Producer – DJ PremierWritten-By – C. Martin*, D. Smith*

Bass, Vibraphone – Mos DefPiano – Weldon IrvineProducer – 88 Keys*, Mos DefWritten-By – C. Njapa*, D. Smith*, W. Irvine*

Bass, Congas, Percussion – Mos DefKeyboards – Weldon Irvine

Bass, Keyboards – Mos DefProducer – Diamond*Scratches – Etch-A-Sketch*

Producer – Ayatollah

Featuring – Busta RhymesMixed By – David KennedyProducer – Mr. KhaliylRecorded By – Johnny Why

Producer – Ali Shaheed Muhammad

Organ [Hammond] – Weldon IrvinePiano [Fender Rhodes] – Will I AmProducer – David Kennedy

Producer – Psycho Les

Bass, Drums, Written-By [Outro] – Mos DefGuitar – Johnny WhyProducer – Psycho Les

Featuring – Talib KweliProducer – Ayatollah

Arranged By [Strings] – Mos Def, Weldon IrvineCo-producer, Written-By [Strings] – Weldon IrvineFeaturing – Vinia MojicaProducer – Etch-A-Sketch*

Producer [1st Move] – GE-OLOGYProducer [2nd Move] – David Kennedy, Mos DefProducer [3rd Move] – Mos Def

Producer – Etch-A-Sketch*Written-By [Keyboards], Arranged By [Keyboards] – Weldon Irvine

Congas, Percussion – Mos DefFeaturing – Q-TipProducer – D-Prosper*

Producer – DJ Premier

Bass, Vibraphone – Mos DefPiano – Weldon Irvine