<The Opposite Six> September, 1963 - September, 1965

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 1. She Loves You / Dawn (Go Away) (1964, EP)

 2. All Night Long / Come Straight Home (January, 1965, EP)

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<Sons Of Champlin> November, 1965 - August, 1977, 1997 - Present

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 1. Loosen Up Naturally (April, 1969) #137

 2. The Sons (October, 1969) #171

 3. Follow Your Heart (April, 1971)

 # Minus Seeds And Stem (July, 1971)

 4. Welcome To The Dance (May, 1973) #186

 5. The Sons Of Champlin (March, 1975) 

 6. A Circle Filled With Love (May, 1976) #117

 7. Loving Is Why (May, 1977) #188

 #. Live (July 28, 1998) Live CD

 #. Fat City (1999, Recorded : 1966-1967)

 #. Secret (December, 2002) Live CD/DVD

 8. Hip Li'l Dreams (August, 2005)

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<Band Members of "The Sons of Champlin">

1. Bill Champlin (Lead Vocals, Organ, Guitar) November, 1965- 1977, 1997-present

2. Tim Cain (Sax, Vocals) November, 1965-February, 1970, December, 2012-present 

3. Jim Myers (Drums) November, 1965-October, 1966

4. John Prosser (Bass) November, 1965-1966

5. Terry Haggerty (Guitar, Vocals) November, 1965-1977, 1997-October, 2001)

6. Al Strong (Bass) 1966-June, 1971)

7. Chris Howard (Drums) October, 1966-November, 1966

8. Bill Bowen (Drums) November, 1966-June, 1971

9. Geoff Palmer (Organ, Vibes) November, 1967-1977, 1997-present

10. Jim Beem (Trumpet) November, 1967-November, 1968, May, 1969-September, 1969

11. John Harold Oxendine (Drums) May, 1969-July, 1969

12. David Shallock (Bass) June, 1971-November, 1976, 1997-2010

13. Bill Vitt (Drums) June, 1971-March, 1972

14. James Preston (Drums) March, 1972-1977, 1997-July 30, 2014

15. Mark Isham (Trumpet, Sax, Keyboard) 1973-1975

16. Phil Wood (Trumpet, Keyboard) 1974-1975

17. Michael Andreas (Sax, Flute) 1974-1975

18. Steve Frediani (Sax) 1975-August, 1977

19. David Farey (Trumpet, Flugelhorn) 1976-August, 1977

20. Rob Moitoza (Bass, Harmonica) November, 1976-August, 1977

21. Tom Saviano (Sax, Keyboards) 1997-2006

22. Mic Gillette (Trumpet, Trombone) 1997-2006

23. Tal Morris (Guitar, Vocals) October, 2001-2005, 2022-present

24. Carmen Grillo (Guitar, Vocals) 2005-2021

25. Tamara Champlin (Vocals) March, 2010-present

26. Will Champlin (Keyboards, Guitar, Vocals) March, 2010-September, 2010)

27. Bobby Vega (Bass) 2010

28. Jonnie Bamont (Sax) 2010

29. Curtis Ohlson (Bass) 2010

30. Doug Rowan (Saxes) 2010-present

31. Jeff Lewis (Trumpet, Percussion) 2010-present

32. Dick Mithun (Bass) December, 2012-2023

33. Alan Hertz (Drums) September, 2014-2022

34. Bill Gibson (Drums) 2023-present

35. Dawayne Pate (Bass) 2024-

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<The Rhythm Dukes> 1970

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 1. FlashBack (2005, Recorded : April 16, 1970)

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<Solo> 1978-1981, August, 2009-Present

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 1. Single (August, 1978)

 2. Runaway (December, 1981) #178

 #  No Wasted Moment (August 25, 1990) Mini CD

 3. Burn Down The Night (May 21, 1992)

 4. Through It All (October 26, 1994)

 5. He Started To Sing (November 25, 1995)

 #  Mayday (February 26, 1997) Studio Live CD

 6. No Place Left To Fall (November 5, 2008)

 7. Livin’ For Love (January 22, 2021)

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<Chicago> December 1981 - August, 2009

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 1. Chicago 16 (May 26, 1982) #9

 2. Chicago 17 (May 14, 1984) #4

 3. Chicago 18 (September 22, 1986) #35

 4. Chicago 19 (June 20, 1988) #37

 5. Twenty 1 (January 29, 1991) #66

 6. Night & Day (May 23, 1995) #90

 7. Chicago XXV: Chirstmas Album (August 25, 1998) #47

 #  Chicago XXVI (October 12, 1999) Live CD

 8. Christmas : What’s It Gonna Be, Santa ? (October 14, 2003) #102

 9. Chicago XXX (March 21, 2006) #41

10. Chicago XXXII - Stone Of Sisyphus (June 17, 2008) #122

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<West Coast All Stars> 1997

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 1. California Dreamin' (July 18, 1997)

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​<Champlin Williams Friestedt> 2012-Present

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 #   Bill Champlin, Joseph Williams, Peter Friestedt with All Star Band / Live In Concert (April 26, 2013)

 1. CWF (October 23, 2015)

 #  10 Miles (6 tracks Mini album, June, 2018) 

 2. CWF II (May 15, 2020)

 #  Carrie (6 tracks EP, May 5, 2023)

​​​

<Bill Champlin and Wunderground> 2017-Present

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1. Bleeding Secrets (April 21, 2018)