Macy Gray ‎– The Id

Backing Vocals – Latina Webb, Lejon Walker Synthesizer [Casio], Organ [Rhodes] – Zac Rae

Backing Vocals – Erica Yancey*, Jane Lopez, Printz Board, Steve Baxter, Tim Izo Orindgreff* Drums – Isiah Avila* Strings – Lily Haydn* Synthesizer [Moog] – Jeremy Ruzumna

Co-producer – DJ Kiilu Grand* Co-producer, Mixed By – Ahmir '?uestlove' Thompson Drums – Herb Graham Jr. Guitar – Zac Rae Rap [Featuring] – Slick Rick Strings – Darryl Swann

Guitar – John Frusciante Organ [Rhodes] – Darren Johnson (2) Strings – Charles Veal Jr. Synthesizer [Farfisa] – Keefus Ciancia Vocals [Featuring] – Erykah Badu

Clarinet – Tim Izo Orindgreff* Drums – Herb Graham Jr., Isiah Avila* Guitar – Dustin Boyer Organ – Tim Carmon, Zac Rae Percussion – Davey Chedwiggen*

Backing Vocals – Pamela Williams Flute – Tim Izo Orindgreff* Synthesizer – Jeremy Ruzumna Synthesizer [Moog], Organ [Whirly] – Keefus Ciancia Voice – Jeremy Ruzumna

Backing Vocals – Marina Bambino Flute – Tim Izo Orindgreff* Guitar, Strings, Co-producer – Raphael Saadiq Organ – James Wooten Strings – Charles Veal Jr. Vocals – Sunshine Anderson

Backing Vocals – Lejon Walker, Marc Cross, Pamela Williams Bass – Lonnie "Meganut" Marshall Clarinet – Tim Izo Orindgreff* Claves – Billy Preston Drums – Dion Murdock Organ [Whirly] – Jeremy Ruzumna Rap [Featuring] – Mos Def Sitar – Gabby Lang Synthesizer [Kurzweil], Organ [Whirly] – Keith Ciancia Synthesizer [Moog] – Zac Rae Vocals [Featuring] – Angie Stone

Synthesizer, Organ [Whirly] – Zac Rae

Backing Vocals, Mixed By – Thom Russo Organ – Brian J. Durack

Clarinet – Tracy Wannamoe* Percussion – Darryl Swann Synthesizer [Wurlitzer], Clarinet – Zac Rae Trombone – Tom Ralls

Clarinet – Tracy Wannamoe* Percussion – Darryl Swann Synthesizer [Wurlitzer], Clarinet – Zac Rae Trombone – Tom Ralls