Chicago / Chicago 2

Art Direction – Maria Villar Artwork [Cover] – Nick Fasciano Coordinator [Liner Notes] – Tim Scanlin Design – Amy McFarland Design – Maria Villar Design [Cover] – John Berg Drums – Daniel Seraphine Engineer – Brian Ross-Myring Engineer – Chris Hinshaw Engineer – Don Puluse Liner Notes – David Wild Other [Project Assistance] – April Milek Other [Project Assistance] – Bob O'Neill Other [Project Assistance] – Ingrid K. Olson Other [Project Assistance] – Randy Perry Other [Project Assistance] – Steve Woolard Photography By – Herb Greene Photography By [Additional] – Hugh Brown (3) Photography By [Additional] – Michael Ochs Archives Producer – James William Guercio Product Manager – Mike Engstrom Remastered By – Dave Donnelly Research [Editorial] – Steven Chean Supervised By [A&r/project] – David McLees Supervised By [A&r/project] – Gary Peterson (2) Supervised By [A&r/project] – Lee Loughnane Supervised By [Audio] – Jeff Magid Supervised By [Editorial] – Cory Frye Trombone – James Pankow Trumpet, Vocals – Lee Loughnane Vocals, Bass – Peter Cetera Vocals, Guitar – Terry Kath Vocals, Keyboards – Robert Lamm Woodwind, Vocals – Walter Parazaider