Backing Vocals - Dante Santiago (tracks: 1, 3, 4, 6, 10)
Bass - Mike Fratantuno (tracks: 1, 2, 3, 6, 13, 14)
Drum Programming - Will I Am (tracks: 1, 4, 6 to 10)
Engineer - Dylan Dresdow (tracks: 1, 5 to 7, 13) , Will I Am (tracks: 2 to 4, 8, 9, 12)
Engineer [Assistant] - Christine Sirois (tracks: 1, 5, 6, 7, 13)
Executive Producer - Ron Fair , Will I Am
Guitar - George Pajon Jr. (tracks: 1, 3, 5 to 8, 10, 13) , J. Curtis (tracks: 5, 7, 11, 13)
Mastered By - Brian "Big Bass" Gardner*
Mixed By - Tony Maserati (tracks: 1 to 9, 11, 13)
Other [A & R Coordination] - Elisa Yastic
Other [A & R] - Michelle Ozbourn , Seth Friedman
Other [Art Coordination] - Nicole Frantz
Other [Business Manager] - Sean Larkin
Other [Management] - David Sonnenberg , Seth Friedman
Other [Production Coordinator] - Andrew van Meter
Photography - Indrani , Marcus Klinko
Producer - Will I Am (tracks: 1 to 13)
Synthesizer [Moog] - Will I Am (tracks: 1, 4, 5, 8 to 11, 13)
Vocals - Apl. De Ap (tracks: 1 to 3, 5 to 7, 11, 12) , Fergie (2) (tracks: 1 to 5, 8 to 11, 13, 14) , Taboo (9) (tracks: 1 to 3, 5 to 7) , Will I Am (tracks: 1 to 10, 12 to 14)