Chicago es, junto con Blood, Sweat & Tears (BS&T), la banda más representativa,1 y la más exitosa en términos comerciales,2 de lo que se dieron en llamar Big Bands de Rock. Se fundó en la ciudad de su mismo nombre, en 1967, aunque inicialmente se denominó "Chicago Transit Authority", nombre que debieron recortar por problemas jurídicos con la autoridad de transporte público de la ciudad. El grupo permanece activo en la actualidad.
| 1 | It Better End Soon: 1st Movement | Chicago II |
| 2 | Ballet for a Girl in Buchannon: West Virginia Fant | Chicago II |
| 3 | Prima Donna | Chicago 17 |
| 4 | Happy Man | Chicago XV - Chicago's Greatest Hits, Vol. II |
| 5 | Ballet for a Girl in Buchannon: Anxiety's Moment | Chicago II |
| 6 | Holdin' On | Twenty 1 |
| 7 | Ballet for a Girl in Buchannon: P.M. Mourning | Chicago II |
| 8 | Feelin´ stranger every day | Chicago: Greatest Hits |
| 9 | Ballet for a Girl in Buchannon: To Be Free | Chicago II |
| 10 | Ballet for a Girl in Buchannon: So Much to Say, So | Chicago II |
| 11 | Baby What A Big Surprise | Chicago XV - Chicago's Greatest Hits, Vol. II |
| 12 | Once In A Lifetime | Chicago 17 |
| 13 | Wake Up Sunshine | Chicago II |
| 14 | Does Anybody Really Know What Time It Is? | If You Leave Me Now |
| 15 | Colour my world | Chicago: Greatest Hits |
| 16 | Ballet for a Girl in Buchannon: Fancy Colours | Chicago II |
| 17 | Harry Truman | Chicago VIII |
| 18 | Closer To You | Group Portrait |
| 19 | Ballet for a Girl in Buchannon: So Much to Say, So | Chicago II |
| 20 | Remember The Feeling | Chicago 17 |