# List of Chicago band members

Chicago is an American rock band from Chicago, Illinois. Formed in February 1967, the group was originally known as The Big Thing and later Chicago Transit Authority, before becoming Chicago in 1969. Initially featuring guitarist and vocalist Terry Kath, keyboardist and vocalist Robert Lamm, drummer Danny Seraphine, saxophonist Walter Parazaider, trumpeter Lee Loughnane and trombonist James Pankow, the band added bassist and vocalist Peter Cetera in December 1967. The group has been through many lineup changes and currently includes four original members – Lamm, Loughnane, Pankow, and Parazaider (retired member since 2017) – plus drummer Walfredo Reyes Jr. (since 2012), saxophonist Ray Herrmann (since 2016), vocalist Neil Donell (since 2018), percussionist Ramon "Ray" Yslas (since 2018), guitarist Tony Obrohta (since 2021), Loren Gold on keyboards and vocals (since 2022), bassist Eric Baines (since 2022), and Carlos Murguia on keyboards and vocals (since 2025).

## History
### 1967–2009

Chicago was formed under the name The Big Thing on February 15, 1967, with the original lineup comprising guitarist and vocalist Terry Kath, keyboardist and vocalist Robert Lamm, drummer Danny Seraphine, saxophonist Walter Parazaider, trumpeter Lee Loughnane and trombonist James Pankow. In December, bassist Peter Cetera was added to the band, which was soon renamed Chicago Transit Authority. After the release of a self-titled debut album in April 1969, the band shortened its name to simply Chicago after receiving a threat of legal action from the Chicago Transit Authority. The group's lineup remained stable for over ten years and released a series commercially and critically successful albums. In 1974, percussionist Laudir de Oliveira was added as an eighth member of the band after contributing to Chicago VI and VII as a guest musician. On January 23, 1978, however, the band suffered its first personnel loss when Kath accidentally killed himself with a gunshot to the head.
The band briefly considered breaking up after Kath's death, but ultimately chose to continue and added Donnie Dacus as his replacement in April 1978. After just two albums, Dacus was dismissed from Chicago in February 1980. He was replaced by Chris Pinnick, who was initially credited as an additional contributor but later upgraded to a full band member. After the release of Chicago XIV, the band was complemented on tour by Marty Grebb on saxophone, guitar and keyboards. At the end of the album's touring cycle, de Oliveira left Chicago. In late 1981, after being dropped by Columbia Records, the band started working with David Foster as its new producer, who introduced keyboardist, guitarist and vocalist Bill Champlin to the lineup. Cetera's brother, Kenny, performed background vocals on Chicago 17, and was also added as a touring percussionist and background singer after its release in 1984. Despite renewed commercial success for the group, Cetera left Chicago in July 1985 to focus on his solo career. Pinnick left around the same time.
Cetera was replaced in September 1985 by Jason Scheff, son of former Elvis Presley bassist Jerry Scheff. Pinnick was not replaced until the following July, when former Bob Seger's Silver Bullet Band guitarist Dawayne Bailey joined the group. Chicago lost another founding member in May 1990, when Seraphine was fired and replaced by Tris Imboden. After voicing his frustration with the cancellation of Stone of Sisyphus in 1994, Bailey's contract was not renewed and he was dismissed from the band. Bruce Gaitsch initially filled in on guitar, including the recording of 1995's Night & Day: Big Band, before Keith Howland was hired as Bailey's replacement in January 1995. Chicago's lineup remained stable throughout the rest of the 1990s and the 2000s, save for the addition of several touring substitutes at various times, including trombonist Nick Lane in place of Pankow, saxophonist Larry Klimas in place of Parazaider, and trumpeter Lee Thornburg in place of Loughnane.

### 2009 onwards

In 2009, after substituting for Imboden on drums at a number of shows, Drew Hester joined Chicago on percussion. Shortly thereafter, Champlin left Chicago after 28 years with the band, reportedly to focus on his solo career. He was replaced on keyboards and vocals by Lou Pardini. Champlin later claimed that he was fired, rather than having left of his own choosing. Hester left in May 2012 to return to focus on drumming. His place was initially taken briefly by Daniel de los Reyes, before his brother Walfredo Reyes Jr. took over more permanently when the former committed full-time to the Zac Brown Band instead. In October 2016, Scheff also left the band after a five-month leave of absence due to "family health issues", with his replacement Jeff Coffey taking over on a permanent basis. The following year, Parazaider retired from touring due to a heart condition, with Ray Herrmann taking his place as an official band member (although Parazaider remained a member of the band, too).
Chicago experienced two lineup changes in January 2018. First Imboden announced on January 17 that he was leaving to spend more time with his new wife, then two days later Coffey followed due to the band's heavy touring schedule. Reyes subsequently switched from percussion to take over Imboden's role on drums, while Coffey was replaced by vocalist Neil Donell and bassist Brett Simons. Daniel de los Reyes filled in on percussion again when the band returned to touring, before Ramon "Ray" Yslas took over on a permanent basis. On November 15, 2021, Howland took a leave from the group after breaking his arm in an accident, with guitarist Tony Obrohta substituting for him at concerts. On December 1, 2021, Howland announced he was leaving Chicago after over 26 years, citing the recent accident and lengthy recovery period as bringing about the next phase of his life. Tony Obrohta joined the group to replace Howland in December 2021. On January 21, 2022, Lou Pardini announced his departure from the band. Loren Gold, who had substituted for Pardini in August and September 2021, began appearing with the group on vocals and keyboards for tour dates starting in January 2022. Gold officially joined the band on keyboards and vocals in March 2022. On Friday, May 6, 2022, Chicago announced on their website that Brett Simons had departed the band and Eric Baines (bass, backing vocals) had joined the group.

## Band members
### Current

| Name | Years active | Instruments | Release contributions |
| Robert Lamm | 1967–present | keyboardslead and backing vocalsoccasional acoustic guitarbass pedals (1967) | all Chicago releases to date |
| Lee Loughnane | 1967–present | trumpetflugelhornoccasional keyboards and acoustic guitarbacking and occasional lead vocals | all Chicago releases to date |
| James Pankow | 1967–present | trombonebacking vocalsoccasional percussion and keyboards | all Chicago releases to date |
| Walfredo Reyes Jr. | 2012–present | drums (2018–present)percussion (2012–2018) | all Chicago releases from Chicago XXXVI: Now (2014) onwards, except VI Decades Live: This Is What We Do (2018) |
| Ray Herrmann | 2016–present (touring substitute 2005–2016) | saxophonesfluteclarinetbacking vocals | Chicago XXXVI: Now (2014) (as a session musician)Chicago II Live on Soundstage (2018)Greatest Hits Live (2018)Chicago XXXVII: Chicago Christmas (2019)Chicago XXXVIII: Born for This Moment (2022) |
| Neil Donell | 2018–present | lead and backing vocalsacoustic guitar | Chicago XXXVII: Chicago Christmas (2019)Chicago XXXVIII (2022) |
| Ramon "Ray" Yslas | 2018–present | percussioncongas | Chicago XXXVII: Chicago Christmas (2019)Chicago XXXVIII (2022) |
| Tony Obrohta | 2021–present (touring substitute for Howland November-December 2021) | lead guitarbacking vocals | none to date |
| Loren Gold | 2022–present (touring substitute for Pardini August-September 2021, touring member January-March 2022) | keyboardsbacking and occasional lead vocals | none to date |
| Eric Baines | 2022–present | bassbacking and occasional lead vocals | none to date |
| Carlos Murguia | 2025–present (touring substitute for Gold 2023 and Lamm 2024) | keyboardsbacking and occasional lead vocals | none to date |

### Former

| Name | Years active | Instruments | Release contributions |
| Walter Parazaider | 1967–2018 (retired from touring since 2017) | saxophonesfluteclarinetbacking vocals | all Chicago releases from Chicago Transit Authority (1969) to VI Decades Live: This Is What We Do (2018) |
| Danny Seraphine | 1967–1990 | drumspercussion | all Chicago releases from Chicago Transit Authority (1969) to Chicago 19 (1988)Chicago XXXIV: Live in '75 (2011)VI Decades Live: This Is What We Do (2018) |
| Terry Kath | 1967–1978 (until his death) | lead guitarlead and backing vocalsoccasional bass | all Chicago releases from Chicago Transit Authority (1969) to Chicago XI (1977)Chicago XXXIV: Live in '75 (2011)VI Decades Live: This Is What We Do (2018) |
| Peter Cetera | 1967–1985 | basslead and backing vocalsoccasional guitar | all Chicago releases from Chicago Transit Authority (1969) to Chicago 17 (1984)Chicago XXXIV: Live in '75 (2011)VI Decades Live: This Is What We Do (2018) |
| Laudir de Oliveira | 1974–1981 (session musician 1973–74; died 2017) | percussion | Chicago VI (1973) and Chicago VII (1974) (as a session musician)all releases from Chicago VIII to Chicago XIV (1980)Chicago XXXIV: Live in '75 (2011) |
| Donnie Dacus | 1978–1980 | lead guitarlead and backing vocals | Hot Streets (1978)Chicago 13 (1979) |
| Chris Pinnick | 1980–1985 (session musician 1980) | lead guitar | Chicago XIV (1980)Chicago 16 (1982)Chicago 17 (1984) |
| Bill Champlin | 1981–2009 | keyboardsguitarlead and backing vocals | all Chicago releases from Chicago 16 (1982) to Chicago XXXII: Stone of Sisyphus (2008)VI Decades Live: This Is What We Do (2018) |
| Jason Scheff | 1985–2016 | basslead and backing vocalsoccasional keyboards and guitar | all Chicago releases from Chicago 18 (1986) to Chicago at Symphony Hall (2015), except Chicago XXXIV: Live in '75 (2011)VI Decades Live: This Is What We Do |
| Dawayne Bailey | 1986–1994 | lead guitarbacking and occasional lead vocals | Chicago 19 (1988)Twenty 1 (1991)Chicago XXXII: Stone of Sisyphus (2008)VI Decades Live: This Is What We Do |
| Tris Imboden | 1990–2018 | drumspercussionoccasional harmonica | all Chicago releases from Twenty 1 (1991) to Greatest Hits Live (2018), except Chicago XXXIV: Live in '75 (2011) and VI Decades Live: This Is What We Do (2018) |
| Bruce Gaitsch | 1994–1995 | lead guitar | Night & Day: Big Band (1995)Chicago XXXII: Stone of Sisyphus (2008) (as a session musician)Chicago XXXVIII: Born for This Moment (2022) (as a session musician) |
| Keith Howland | 1995–2021 | lead guitarbacking and occasional lead vocalsoccasional keyboards | all Chicago releases from The Heart of Chicago 1967–1997 (1997) to Chicago XXXVIII: Born For This Moment (2022) |
| Drew Hester | 2009–2012 (touring substitute in early 2009) | percussiondrums (early 2009 touring substitute) | Chicago XXXIII: O Christmas Three (2011) |
| Lou Pardini | 2009–2022 (touring substitute in 1999 and 2007) | keyboardslead and backing vocals | all releases from Chicago XXXIII: O Christmas Three (2011) to Chicago XXXVIII: Born For This Moment (2022) |
| Daniel de los Reyes | 20122018 | percussion | none – live performances only |
| Jeff Coffey | 2016–2018 (touring substitute in early 2016) | basslead and backing vocalsoccasional acoustic guitar | Chicago II Live on Soundstage (2018)Greatest Hits Live (2018) |
| Brett Simons | 2018–2022 | bassbacking vocals | Chicago XXXVII: Chicago Christmas (2019)Chicago XXXVIII: Born For This Moment (2022) |

### Touring musicians

| Image | Name | Years active | Instruments | Release contributions and comments |
| | Marty Grebb | 1980–1981 (died 2020) | saxophonesguitarkeyboardsbacking vocals | none – live performances onlyGrebb joined Chicago on tour for the promotional cycle following the release of Chicago XIV in 1980. |
| | Kenny Cetera | 1984–1985 | percussionkeyboardsbacking vocals | Chicago 17 – backing vocalsPeter Cetera's brother Kenny also toured with Chicago after the release of Chicago 17, before both left. |

### Touring substitutes

| Name | Years active | Instruments | Release contributions and comments |
| Steve Jankowski | 19922006 | trumpet | Jankowski and Thornburg have both substituted for Lee Loughnane on various occasions. |
| Lee Thornburg | 1992200820092012 | trumpet | Jankowski and Thornburg have both substituted for Lee Loughnane on various occasions. |
| Tom Timko | 19922005 | saxophonesflute | Timko substituted for Walter Parazaider during the summer of 1992 and again in the summer of 2005. |
| Nick Lane | 1999–present | trombone | Lane has substituted for James Pankow on various occasions since 1999, and continues to do so. |
| Larry Klimas | 2003–present | saxophonesflute | Klimas has been a regular substitute for Walter Parazaider and Ray Herrmann since 2003. |
| Rob Arthur | 2022–2023 | keyboardsvocals | Arthur substituted for Loren Gold in 2022. |

## Timelines
### Recording

| Album | Guitar | Bass | Keyboards | Drums | Saxophone, flute, clarinet | Trumpet | Trombone | Percussion | Lead vocals |
| Chicago Transit Authority (1969) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Peter Cetera Terry Kath Robert Lamm |
| Chicago (1970) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Peter Cetera Terry Kath Robert Lamm |
| Chicago III (1971) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Peter Cetera Terry Kath Robert Lamm |
| Chicago V (1972) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Peter Cetera Terry Kath Robert Lamm |
| Chicago VI (1973) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira (session musician) | Peter Cetera Terry Kath Robert Lamm |
| Chicago VII (1974) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira (session musician) | Peter Cetera Terry Kath Robert Lamm |
| Chicago VIII (1975) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira | Peter Cetera Terry Kath Robert Lamm |
| Chicago X (1976) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira | Peter Cetera Terry Kath Robert Lamm |
| Chicago XI (1977) | Terry Kath | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira | Peter Cetera Terry Kath Robert Lamm |
| Hot Streets (1978) | Donnie Dacus | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira | Peter Cetera Robert Lamm Donnie Dacus |
| Chicago 13 (1979) | Donnie Dacus | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira | Peter Cetera Robert Lamm Donnie Dacus |
| Chicago XIV (1980) | Chris Pinnick | Peter Cetera | Robert Lamm | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | Laudir de Oliveira | Peter Cetera Robert Lamm |
| Chicago 16 (1982) | Chris Pinnick | Peter Cetera | Robert Lamm Bill Champlin | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Peter Cetera Robert Lamm Bill Champlin |
| Chicago 17 (1984) | Chris Pinnick | Peter Cetera | Robert Lamm Bill Champlin | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Peter Cetera Robert Lamm Bill Champlin |
| Chicago 18 (1986) | session musicians | Jason Scheff | Robert Lamm Bill Champlin | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Robert Lamm Bill Champlin Jason Scheff |
| Chicago 19 (1988) | Dawayne Bailey | Jason Scheff | Robert Lamm Bill Champlin | Danny Seraphine | Walter Parazaider | Lee Loughnane | James Pankow | none | Robert Lamm Bill Champlin Jason Scheff |
| Twenty 1 (1991) | Dawayne Bailey | Jason Scheff | Robert Lamm Bill Champlin | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | none | Robert Lamm Bill Champlin Jason Scheff |
| Chicago XXXII (2008) | Dawayne Bailey | Jason Scheff | Robert Lamm Bill Champlin | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | none | Robert Lamm Bill Champlin Jason Scheff |
| Night & Day: Big Band (1995) | Bruce Gaitsch | Jason Scheff | Robert Lamm Bill Champlin | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | Luis Conte (session musician) | Robert Lamm Bill Champlin Jason Scheff |
| Chicago XXV (1998) | Keith Howland | Jason Scheff | Robert Lamm Bill Champlin | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | Luis Conte (session musician) | Robert Lamm Bill Champlin Jason Scheff |
| Chicago XXX (2006) | Keith Howland | Jason Scheff | Robert Lamm Bill Champlin | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | none | Robert Lamm Bill Champlin Jason Scheff |
| Chicago XXXV (2013) | Keith Howland | Jason Scheff | Robert Lamm Bill Champlin | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | none | Robert Lamm Jason Scheff |
| Chicago XXXIII (2011) | Keith Howland | Jason Scheff | Robert Lamm Lou Pardini | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | Drew Hester | Robert Lamm Jason Scheff Lou Pardini |
| Chicago XXXVI (2014) | Keith Howland | Jason Scheff | Robert Lamm Lou Pardini | Tris Imboden | Walter Parazaider | Lee Loughnane | James Pankow | Walfredo Reyes Jr. | Robert Lamm Jason Scheff Lou Pardini |
| Chicago XXXVII (2019) | Keith Howland | Brett Simons | Robert Lamm Lou Pardini | Walfredo Reyes Jr. | Ray Herrmann | Lee Loughnane | James Pankow | Ramon Yslas | Robert Lamm Lou Pardini Neil Donell |
| Chicago XXXVIII: Born For This Moment (2022) | Keith Howland | Brett Simons | Robert Lamm Lou Pardini | Walfredo Reyes Jr. | Ray Herrmann | Lee Loughnane | James Pankow | Ramon Yslas | Robert Lamm Neil Donell |

## Lineups

| Period | Members | Releases |
| February – December 1967 (as The Big Thing) | Robert Lamm – keyboards, vocals Terry Kath – guitar, vocals Danny Seraphine – drums, percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | none |
| December 1967 – June 1968 (as The Big Thing) | Robert Lamm – keyboards, vocals Terry Kath – guitar, vocals Peter Cetera – bass, vocals Danny Seraphine – drums, percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | none |
| June 1968 – mid-1969 (as Chicago Transit Authority) | Robert Lamm – keyboards, vocals Terry Kath – guitar, vocals Peter Cetera – bass, vocals Danny Seraphine – drums, percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago Transit Authority (1969) |
| Mid-1969 – early-1974 | Robert Lamm – keyboards, vocals Terry Kath – guitar, vocals Peter Cetera – bass, vocals Danny Seraphine – drums, percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Touring musicians Laudir de Oliveira – percussion (1973–1974) | Chicago (1970) Chicago III (1971) Chicago at Carnegie Hall (1971) Chicago V (1972) Chicago VI (1973) Chicago VII (1974) |
| Mid-1974 – January 1978 | Robert Lamm – keyboards, vocals Terry Kath – guitar, vocals Peter Cetera – bass, vocals Danny Seraphine – drums Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Laudir de Oliveira – percussion, congas | Chicago VIII (1975) Chicago X (1976) Chicago XI (1977) Chicago XXXIV: Live in '75 (2011) |
| April 1978 – February 1980 | Robert Lamm – keyboards, vocals Peter Cetera – bass, vocals Donnie Dacus – guitar, vocals Danny Seraphine – drums Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Laudir de Oliveira – percussion | Hot Streets (1978) Chicago 13 (1979) |
| February 1980 – late 1981 | Robert Lamm – keyboards, vocals Peter Cetera – bass, vocals Danny Seraphine – drums Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Laudir de Oliveira – percussion Chris Pinnick – lead guitar Touring musicians Marty Grebb – saxophone, guitar, keyboards, backing vocals (1980–1981) | Chicago XIV (1980) |
| Late 1981 – July 1985 | Robert Lamm – keyboards, vocals Peter Cetera – bass, vocals Bill Champlin – keyboards, guitar, vocals Danny Seraphine – drums Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Chris Pinnick – lead guitar Touring musicians Kenny Cetera – percussion, keyboards, backing vocals (1984–1985) | Chicago 16 (1982) Chicago 17 (1984) |
| September 1985 – July 1986 | Robert Lamm – keyboards, vocals Bill Champlin – keyboards, guitar, vocals Jason Scheff – bass, vocals Danny Seraphine – drums Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago 18 (1986) |
| July 1986 – May 1990 | Robert Lamm – keyboards, vocals Bill Champlin – keyboards, guitar, vocals Jason Scheff – bass, vocals Dawayne Bailey – lead guitar, backing vocals Danny Seraphine – drums Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago 19 (1988) |
| May 1990 – late 1994 | Robert Lamm – keyboards, vocals Bill Champlin – keyboards, guitar, vocals Jason Scheff – bass, vocals Dawayne Bailey – lead guitar, backing vocals Tris Imboden – drums, percussion, harmonica Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Twenty 1 (1991) Chicago XXXII: Stone of Sisyphus (2008) |
| December 1994 – January 1995 | Robert Lamm – keyboards, vocals Bill Champlin – keyboards, guitar, vocals Jason Scheff – bass, vocals Bruce Gaitsch – lead guitar Tris Imboden – drums, percussion, harmonica Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Night & Day: Big Band (1995) |
| January 1995 – mid-2009 | Robert Lamm – keyboards, vocals Bill Champlin – keyboards, guitar, vocals Jason Scheff – bass, vocals Keith Howland – lead guitar, backing vocals Tris Imboden – drums, percussion, harmonica Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago XXV: The Christmas Album (1998) Chicago XXVI: Live in Concert (1999) A&E Network: Live by Request (2003) Live in Concert... (2003) Live at the Greek Theatre (2004) Chicago XXX (2006) Chicago XXXV: The Nashville Sessions (2013) |
| Mid-2009 | Robert Lamm – keyboards, vocals Bill Champlin – keyboards, guitar, vocals Jason Scheff – bass, vocals Keith Howland – lead guitar, backing vocals Tris Imboden – drums, harmonica Drew Hester – percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | none |
| August 2009 – May 2012 | Robert Lamm – keyboards, vocals Jason Scheff – bass, vocals Lou Pardini – keyboards, vocals Keith Howland – guitar, backing vocals Tris Imboden – drums, harmonica Drew Hester – percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago XXXIII: O Christmas Three (2011) |
| May 2012 | Robert Lamm – keyboards, vocals Jason Scheff – bass, vocals Lou Pardini – keyboards, vocals Keith Howland – guitar, backing vocals Tris Imboden – drums, harmonica Daniel de los Reyes – percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | none |
| May 2012 – October 2016 | Robert Lamm – keyboards, vocals Jason Scheff – bass, vocals Lou Pardini – keyboards, vocals Keith Howland – guitar, backing vocals Tris Imboden – drums, harmonica Walfredo Reyes Jr. – percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago XXXVI: Now (2014) Chicago at Symphony Hall (2015) |
| October 2016 – June 2017 | Robert Lamm – keyboards, vocals Lou Pardini – keyboards, vocals Jeff Coffey – bass, vocals Keith Howland – guitar, backing vocals Tris Imboden – drums, harmonica Walfredo Reyes Jr. – percussion Walter Parazaider – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | none |
| June 2017 – January 2018 | Robert Lamm – keyboards, vocals Lou Pardini – keyboards, vocals Jeff Coffey – bass, vocals Keith Howland – guitar, backing vocals Tris Imboden – drums, harmonica Walfredo Reyes Jr. – percussion Ray Herrmann – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago II Live on Soundstage (2018) Greatest Hits Live (2018) |
| January – May 2018 | Robert Lamm – keyboards, vocals Lou Pardini – keyboards, vocals Neil Donell – vocals, acoustic guitar Keith Howland – lead guitar, backing vocals Brett Simons – bass, backing vocals Walfredo Reyes Jr. – drums Daniel de los Reyes – percussion Ray Herrmann – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | none |
| May 2018 – December 2021 | Robert Lamm – keyboards, vocals Lou Pardini – keyboards, vocals Neil Donell – vocals, acoustic guitar Keith Howland – lead guitar, backing vocals Brett Simons – bass, backing vocals Walfredo Reyes Jr. – drums Ramon "Ray" Yslas – percussion Ray Herrmann – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals | Chicago XXXVII: Chicago Christmas (2019) Chicago XXXVIII: Born For This Moment (2022) |
| December 2021 - January 2022 | Robert Lamm – keyboards, vocals Lou Pardini – keyboards, vocals Neil Donell – vocals, acoustic guitar Brett Simons – bass, backing vocals Walfredo Reyes Jr. – drums Ramon "Ray" Yslas – percussion Ray Herrmann – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Tony Obrohta - lead guitar, backing vocals | none |
| January – March 2022 | Robert Lamm – keyboards, vocals Neil Donell – vocals, acoustic guitar Brett Simons – bass, backing vocals Walfredo Reyes Jr. – drums Ramon "Ray" Yslas – percussion Ray Herrmann – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Tony Obrohta - lead guitar, backing vocals Touring musicians Loren Gold – keyboards, vocals (2022) | none |
| March – April 2022 | Robert Lamm – keyboards, vocals Neil Donell – vocals, acoustic guitar Brett Simons – bass, backing vocals Walfredo Reyes Jr. – drums Ramon "Ray" Yslas – percussion Ray Herrmann – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Tony Obrohta - lead guitar, backing vocals Loren Gold – keyboards, vocals | none |
| May 2022 – present | Robert Lamm – keyboards, vocals Neil Donell – vocals, acoustic guitar Walfredo Reyes Jr. – drums Ramon "Ray" Yslas – percussion Ray Herrmann – woodwind, backing vocals Lee Loughnane – trumpet, backing vocals James Pankow – trombone, backing vocals Tony Obrohta – lead guitar, backing vocals Loren Gold – keyboards, vocals Eric Baines – bass, backing vocals | none |