Chicago: Terry Kath (vocals, electric guitar, guitar, percussion); Lee Loughnane (vocals, trumpet, flugel horn); James Pankow (vocals, trombone, keyboards, percussion); Robert Lamm (vocals, keyboards, percussion); Peter Cetera (vocals, bass); Walter Parazaider (woodwinds, baritone saxophone); Danny Seraphine (drums, percussion); Laudir De Oliveira (percussion).

Additional personnel: Chaka Khan (spoken vocals, background vocals); David "Hawk" Wolinski (Fender Rhodes piano, arp synthesizer); James William Guercio (acoustic guitar, bass, Tim Cetera, Carl Wilson (background vocals); The Voices Of Inspiration.

Recorded at Caribou Ranch, Nederland, Colorado. Originally released as Columbia (34860). Includes liner notes by A. Scott Galloway.

All tracks have been digitally remastered.