Who played and sang
On these albums
ChicagoChicago · 1970
Chicago IX: Chicago’s Greatest HitsChicago · 1975
If You Leave Me NowChicago · 1982
The Feeling of Chicago: A Collection of Their Greatest HitsChicago · 1982
The Ultimate CollectionChicago · 1984
Remember the 70’s, Volume 3Various Artists · 1984
If You Leave Me Now / 25 or 6 to 4Chicago · 1984
Star BoxChicago · 1988
The Heroes of Pop Music: 32 Masterwork of Pop MusicVarious Artists · 1988
The Best of ChicagoChicago · 1989
Greatest Hits (25 OR 6 TO 4)Chicago · 1990
20 Super Hits of the Century: The 70sVarious Artists · 1990
Legacy: Music for the Next GenerationVarious Artists · 1990
Tour Of Duty VVarious Artists · 1990
Group PortraitChicago · 1991
The Flashback of the 70’sVarious Artists · 1992
The Best of Tour of DutyVarious Artists · 1992
OvertimeChicago · 1995
Chicago: 25 Years of GoldChicago · 1995
The Very Best of ChicagoChicago · 1996
Maximum RockVarious Artists · 1996
If You Leave Me NowChicago · 1997
The Heart of Chicago 1967–1981Chicago · 1997
The Ultimate Rock Collection: Gold and PlatinumVarious Artists · 1997
The Heart of Chicago 1967–1998, Volume 2Chicago · 1998
ChicagoChicago · 1998
12 grandes éxitos en versión originalChicago · 1998
102 UK Top 10 Hits From the 70’sVarious Artists · 1999
a sampler of chicago's songs & recordingsChicago · 2000
The Very Best of Chicago: Only the BeginningChicago · 2002
The Chicago Story: Complete Greatest HitsChicago · 2002
Motor Trend: Rockin’ Down the Highway (36 Classic Rock Hits)Various Artists · 2002
The BoxChicago · 2003
Selections from Chicago: The BoxChicago · 2003
Essential 70’s Collection, Volume 2Various Artists · 2003
Hits of the SixtiesVarious Artists · 2004
The Encyclopedia of Music: Best of 70's, Volume 1Various Artists · 2004
Legends: Ultimate Rock Collection: Pluggin' InVarious Artists · 2004
60’s and 70’s Hits Come BackVarious Artists · 2004
Ultimate 16 Originals: Retro ’70sVarious Artists · 2005
Source: MusicBrainz recording fcfae542-78a5-409c-a463-45adb9eeebc2 (CC0).