Credits
- Chicago
- Stone of Sisyphus: XXXII
- 2008
- Keyboards
- Chicago
- Stone of Sisyphus: XXXII
- 2008
- Vocals, Vocals (Background)
- Robert Lamm
- Bossa Project
- 2008
- Producer, Vocals
- Chicago
- Best of Chicago: 40th Anniversary Edition
- 2007
- Author, Group Member, Keyboards, Vocals
- Chicago
- Chicago 16 (Bonus Track)
- 2006
- Group Member
- Chicago
- Chicago XXX
- 2006
- Group Member, Horn Arrangements, Organ (Hammond), Wurlitzer, Vocals, Piano
- Chicago
- At Carnegie Hall, Vol. 1-4 (Chicago IV) (Bonus Tracks)
- 2005
- Group Member, Keyboards, Vocals
- Chicago
- Live at the Greek Theatre (DVD)
- 2005
- Group Member, Keyboards, Vocals
- Chicago
- Live in Concert (DVD)
- 2004
- Group Member
- Jeffrey Foskett
- Stars in the Sand
- 2004
- Choir, Chorus, Guitar, Producer, Keyboards
- Various Artists
- Super Rock Festival
- 2004
- Keyboards, Vocals
- Various Artists
- Superstar Rock Festival
- 2003
- Keyboards, Vocals
- Chicago
- Christmas: What's It Gonna Be, Santa?
- 2003
- Arranger, Brass Arrangement, Clavinet, Piano (Electric), Vibraphone, Piano, Group Member, Vocals, Vocals (Background)
- Robert Lamm
- Subtlety & Passion
- 2003
- Cover Art, Guitar, Keyboards, Producer, Vocals
- Chicago
- Chicago: The Box (Bonus DVD)
- 2003
- Keyboards, String Arrangements, Vocals, Synthesizer, Piano (Grand), Percussion
- Chicago
- Chicago 13 (Bonus Tracks)
- 2003
- Keyboards
- Chicago
- Chicago XIV (Bonus Tracks)
- 2003
- Vocals
- Chicago
- Hot Streets (Bonus Track)
- 2003
- Keyboards, Vocals, Vocals (Background), Synthesizer, CS-80
- Chicago
- Chicago XIV (Bonus Tracks)
- 2003
- Keyboards
- Chicago
- Chicago 13 (Bonus Tracks)
- 2003
- Vocals
- Chicago
- Chicago X (Bonus Tracks)
- 2003
- Keyboards
- Chicago
- Chicago XI (Bonus Tracks)
- 2003
- Vocals, Percussion
- Chicago
- Chicago X (Bonus Tracks)
- 2003
- Vocals
- Chicago
- Chicago XI (Bonus Tracks)
- 2003
- Clavinet, Keyboards
- Chicago
- Chicago X (Bonus Tracks)
- 2003
- String Arrangements
- Chicago
- Chicago Story: The Complete Greatest Hits 1967-2002 (2 Disc)
- 2003
- Group Member, Keyboards, Vocals, Percussion
- Chicago
- Chicago V (DVD Audio)
- 2003
- Keyboards, Vocals
- Chicago
- Chicago VII (Bonus Tracks)
- 2002
- Arp, Brass Arrangement, Clavinet, Mellotron, Piano, Keyboards, Fender Rhodes, Piano (Grand), Vocals (Background)
- Chicago
- Chicago VIII (Bonus Tracks)
- 2002
- Vocals, Keyboards
- Chicago
- Chicago VII (Bonus Tracks)
- 2002
- Vocals
- Chicago
- Chicago VI (Bonus Tracks)
- 2002
- Keyboards, Vocals
- Chicago
- Chicago V (Bonus Tracks)
- 2002
- Vocals, Keyboards
- Chicago
- Chicago II (Bonus Tracks)
- 2002
- Keyboards, Vocals
- Chicago
- Live 25 or 6 to 4
- 2002
- Keyboards, Vocals
- Chicago
- Very Best of Chicago: Only the Beginning
- 2002
- Keyboards, Percussion, Vocals
- Chicago
- Live (Laseright)
- 2001
- Keyboards, Vocals
- Beckley-Lamm-Wilson
- Like a Brother
- 2000
- Keyboards, Producer, Vocals
- Various Artists
- Pop Music: The Golden Era 1951-1975
- 1999
- Keyboards
- Robert Lamm
- In My Head
- 1999
- Arranger, Main Performer, Vocals
- Chicago
- Masters: Chicago Live
- 1998
- Keyboards
- America
- Human Nature
- 1998
- ?, Vocals
- Chicago
- Chicago's First Christmas
- 1998
- Piano (Electric)
- Chicago
- Chicago 25: The Christmas Album
- 1998
- Arranger, Piano (Electric), Vocals, Piano, Brass Arrangement
- Kyle Vincent
- Kyle Vincent
- 1997
- Vocals (Background)
- Terry Kath
- Innovative Guitar of Terry Kath
- 1997
- Keyboards, Vocals, Vocals (Background)
- Robert Lamm
- Life Is Good in My Neighborhood
- 1995
- Keyboards, Main Performer, Programming, Piano, Vocals, Vocals (Background)
- Chicago
- Night and Day: Big-Band
- 1995
- Arranger, Keyboards, Vocals
- Various Artists
- For the Love of Harry: Everybody Sings Nilsson
- 1995
- Arranger, Percussion, Drum Programming
- Roger Daltrey
- Rocks in the Head
- 1992
- Piano
- Chicago
- Chicago Twenty 1
- 1991
- Arranger, Horn Arrangements, Keyboards, Vocals (Background), Vocals
- Chicago
- Greatest Hits 1982-1989
- 1989
- Keyboards, Vocals
- Kids of Widney High
- Special Music From Special Kids
- 1989
- Liner Notes
- Chicago
- Best of Chicago
- 1989
- Keyboards, Vocals
- Chicago
- Beginnings Live
- 1989
- Vocals, Keyboards
- Chicago
- Chicago 19
- 1988
- Keyboards, Vocals
- Chicago
- Chicago 18
- 1986
- Arranger, Group Member, Keyboards, Vocals
- Chicago
- Live Chicago
- 1986
- Keyboards, Vocals
- Chicago
- Beginnings
- 1985
- Keyboards, Vocals
- Chicago
- Chicago 17
- 1984
- Keyboards, Vocals
- Chicago
- Toronto Rock 'n' Roll Revival 69
- 1984
- Keyboards, Vocals
- Chicago
- Chicago 16
- 1982
- ?, Keyboards, Vocals
- Chicago
- Love Songs (TVT)
- 1982
- Keyboards
- Chicago
- If You Leave Me Now
- 1982
- Vocals, Keyboards
- Chicago
- Love Songs (TVT)
- 1982
- Vocals
- Chicago
- Greatest Hits, Vol. 2
- 1981
- Keyboards, Vocals
- Chicago
- Chicago XIV
- 1980
- ?, Keyboards, Vocals
- Chicago
- Chicago 13
- 1979
- Keyboards, Vocals
- Chicago
- Hot Streets
- 1978
- Keyboards, Vocals
- Chicago
- Chicago XI
- 1977
- Keyboards, Vocals
- Chicago
- Chicago IX: Greatest Hits
- 1975
- ?, Keyboards, Vocals
- Chicago
- Chicago VIII
- 1975
- Keyboards, Vocals
- Robert Lamm
- Skinny Boy
- 1975
- Clavinet, Fender Rhodes, Guitar, Main Performer, Vocals, Producer, Piano
- Chicago
- Chicago VII
- 1974
- Keyboards, Vocals
- Chicago
- Chicago VI
- 1973
- Keyboards, Vocals
- Chicago
- Live in Japan
- 1972
- Keyboards, Vocals
- Chicago
- At Carnegie Hall, Vol. 1-4 (Chicago IV)
- 1971
- Keyboards, Vocals
- Chicago
- Chicago II
- 1970
- Keyboards, Vocals
- Chicago
- Chicago Transit Authority
- 1969
- Keyboards, Vocals























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