Voice – The Artist Formerly Known As B.R.O.T.H.E.R. ?uestion*, Chuck D, Dr. Cornell West*, Harry Allen, Jai Silk, Joe Young , MC Power , Wendy Goldstein

Bass [The Lowdown Low] – Hub Co-producer – Black ThoughtDrums [On The Trigger] – ?uestlove*Harp – Julia HainesKeyboards [The Keymaster] – Kamal*Producer – KeloVocals [The Attractive Assassin] – Bad Lieutenant Vocals [The Leader Of The 5th Gorilla Chant] – M-Ill-Itant

Bass [Germantown Bottom Provider] – Hub Co-producer – KeloDrums [South Philly Rhythmatist] – Brother ?uestion*Keyboards [MT Airy Groover] – Kamal*Producer – The Grand Negaz*Vocals [South Philly Lyricist] – Black ThoughtVocals [West Oak Lane Brain Shocker] – Malik B.

Co-producer – The Grand Negaz*, Rahzel "The Godfather Of Noyze"*Drums, Electric Piano [Rhodes], Performer [Sedohr], Tambourine – Brother ?uestion*Vocals [All Else You Hear] – Rahzel The Godfather Of Noise*Vocals [The Only Rapper To Be In Bed Before 1 A.M. (?!!??)] – Black Thought

Bass [Key Bass] – Hub Drums, Producer – KeloPiano – Kamal*Vocals [Ahhhhhhhhs] – Tracey*Vocals [Ohhhhhhs] – Fatin Vocals [The Backslapper] – Malik B.Vocals [The Voice Terrorizer] – Black Thought

Co-producer – ?uestlove*Drums – Brother ?uestion*Electric Piano [Rhodes] – Kamal*Producer – Chaos Vocals [1/15th Of Scully Wearers In Philly] – Malik B.Vocals [Hmmmmmm] – Fatin Vocals [Logan Valley Storyteller] – Dice RawVocals [Sights You Won't Believe Your Eyes] – The Jazzyfatnastees*Vocals [South Philly Tour Guide] – Black Thought

Co-producer, Performer [Willie Wonka Bubble Machine] – KeloDrums – ?uestion*Electric Piano [Rhodes] – Kamal On The Keys*Producer – The Grand Negaz*Vocals [(Cr)iminal General] – Malik B.Vocals [S.E.P.T.A. Rider] – Black ThoughtVocals [The Anti-Gangsta Bitch] – Bahamadia

Bass [Bass Manifestations] – Hub Bass, Backing Vocals – Raphael SaadiqCo-producer – The Grand Negaz*, Raphael SaadiqDrums [Percussive Manipulations] – ?uestlove*Guitar [Wes Mongomerations] – (Thank God For) Spanky*Keyboards [Keyboard Wizzidrations] – Kamal On The Keys*Producer – Brother ?uestion*Vocals [Original Vocalizations] – Black ThoughtVocals [Rhythmic Nations] – Rahzel "The Godfather Of Noyze"*Vocals [Vocal Titillations] – Angela Slates

Drums [Beats] – Brother ?uestion*Producer – ?*, ScratchVocals [Vocal Scratching] – Scratch

Featuring – Dice Raw

Featuring – Common Sense*

Vocals – D'Angelo

Featuring – Q-Tip

Saxophone [Featuring] – Joshua RedmanVocals – Cassandra Wilson

Voice – Ursula Rucker

Voice – The Artist Formerly Known As B.R.O.T.H.E.R. ?uestion*, Chuck D, Dr. Cornell West*, Harry Allen, Jai Silk, Joe Young , MC Power , Wendy Goldstein