Just for the Hell of It....

According to Wikipedia - every member ever of Blood, Sweat & Tears. And look who is the current frontman.

Al Kooper : keyboards, vocals (1967–1968)
Randy Brecker : trumpet, flugelhorn (1967–1968)
Jerry Weiss : trumpet, flugelhorn, backing vocals (1967–1968)
Fred Lipsius : alto sax, keyboards (1967–1972)
Dick Halligan : keyboards, trombone, horns, flute, backing vocals (1967–1972)
Steve Katz : guitar, harmonica, lute, mandolin, vocals (1967–1973, and as a special guest at some shows 2008–2010)
Jim Fielder : bass, guitar, backing vocals (1967–1974)
Bobby Colomby : drums, percussion, backing vocals (1967–1977)
David Clayton-Thomas : vocals, guitar (1968–1972, 1974–1981, 1984–2004)
Lew Soloff : trumpet, flugelhorn (1968–1974)
Chuck Winfield : trumpet, flugelhorn, backing vocals (1968–1973)
Jerry Hyman : trombones, recorder (1968–1970)
Dave Bargeron : trombone, tuba, horns, bass, backing vocals (1970–1978)
Bobby Doyle : vocals, piano (1972)†
Joe Henderson : tenor sax (1972)†
Lou Marini Jr. : tenor & soprano sax, flute (1972–1974)
Larry Willis : keyboards (1972–1978)
Georg Wadenius : guitar, vocals (1972–1975)
Jerry Fisher : vocals (1972–1974)
Tom Malone : trombone, trumpet, flugelhorn, alto sax, bass (1973)
John Madrid: trumpet, flugelhorn (1973–1974)
Jerry LaCroix : vocals, alto sax, flute, harmonica (1974)
Ron McClure : bass (1974–1975, 1976)
Tony Klatka : trumpet, horns (1974–1978)
Bill Tillman : alto sax, flute, clarinet, backing vocals (1974–1977)†
Luther Kent : vocals (1974)
Joe Giorgianni : trumpet, flugelhorn (1974–1975)
Jaco Pastorius : bass (1975–1976)†
Steve Khan : guitar (1975)
Mike Stern : guitar (1975–1977)
Keith Jones : bass (1976)
Danny Trifan : bass (1976–1977)
Forrest Buchtell : trumpet (1975–1977)
Don Alias : percussion (1975–1976)†
Roy McCurdy : drums (1976–1977)
Jeff Richman : guitar (1976 fill in for Stern)
Randy Bernsen : guitar (1977)
Barry Finnerty : guitar (1977–1978)
Neil Stubenhaus : bass (1977–1978)
Gregory Herbert : saxophone (1977–1978)†
Michael Lawrence : trumpet (1977)†
Chris Albert : trumpet (1977–1978)
Bobby Economou : drums (1977–1978, 1979–1981, 1994–1995)
Kenny Marco : guitar (1979)
David Piltch : bass (1979–1980)
Joe Sealy : keyboards (1979)
Bruce Cassidy : trumpet, flugelhorn (1979–1980)
Earl Seymour : sax, flute (1979–1981)†
Steve Kennedy : sax, flute (1979)
Sally Chappis : drums (1979)
Harvey Kogan : sax, flute (1979)
Jack Scarangella : drums (1979)
Vernon Dorge : sax, flute, vuvuzela (1979–1981)
Robert Piltch : guitar (1979–1980)
Richard Martinez : keyboards (1979–1980)
Wayne Pedzwiatr : bass (1980–1981)
Peter Harris : guitar (1980–1981)
Lou Pomanti : keyboards (1980–1981)
Mic Gillette : trumpet (1980–1981)
James Kidwell : guitar (1984–1985)
Jeff Andrews : bass (1984–1985)
Taras Kovayl : keyboards (1984–1985)
Tim Ouimette : trumpet, horns (1984–1985)
Mario Cruz : sax, flute (1984–1985)
Ricky Sebastian : drums (1984–1985)
Steve Guttman : trumpet (1985–2005)
Dave Gellis : guitar (1985–1990, 1996, fill in – 1998, 2005– )
Ray Peterson : bass (1985–1986)
Scott Kreitzer : sax, flute (1985–1986)
Teddy Mulet : trombone (1985–1986), trumpet (2005–2013)
Barry Danielian : trumpet (1985–1986, 2013-2014)
Richard Sussman : keyboards (1985–1987)
Randy Andos : trombone (1986)
Tom Timko : sax, flute (1986–1987, 1995, 1998–2001, 2005–2008, 2009–2010)
Tom DeFaria : drums (1985–1986)
John Conte : bass (1986–1987)
Steve Conte : guitar (fill in – 1986)
Jeff Gellis : bass (1987–1990)
Dave Panichi : trombone (1987–1988, 1997–1998)
Glenn McClelland : keyboards (1987–1993, 1998, 2005–)
David Riekenberg : sax, flute (1987–1990, 1995–1998)
Jerry Sokolov : trumpet (1987–1994)
Graham Hawthorne : drums (1987–1988, 1989–1991)
Nick Saya : drums (1991)
Van Romaine : drums (1988–1989)
Neil Capolongo : drums (1991–1993)
Peter Abbott : drums (fill in – early 1990s)
Charley Gordon : trombone (1987–1994, 2001, 2013-2014)
Wayne Schuster : sax, flute (1990–1991)
Larry DeBari : guitar, vocals (1990–1997)†
Gary Foote : bass (1990–1994, 1996–2004, 2005–2012)
Jack Bashcow : sax, flute (1992)
Tim Ries : sax, flute (1992–1993, 1993–1995)
Charlie Cole : sax, flute (1993)
Matt King : keyboards (1994–1998)
Mike Mancini : keyboards (fill in – 1980s/1990s)
Franck Amsallem : keyboards (fill in – mid-1990s)
Henry Hey : keyboards (fill in – mid-1990s)
Ted Kooshian : keyboards (fill in – mid-1990s)
Cliff Korman: keyboards (fill in – mid-1990s)
Mike DuClos : bass (1994–1996)
James "Hambone" Hamlin : bass (fill in – 1995)
Jonathan Peretz : drums (1995–1997)
Craig Johnson : trumpet (1994–1998)
Matt Milmerstadt : drums (1995, 1998)
Tom Guarna : guitar (1997–1998)
Jon Owens : trumpet (1998–2000)
Charles Pillow : sax, flute (fill in – 1998)
Brian Delaney : drums (1997–1998, 2001)
Dave Stahl : trumpet (fill in – 1995–1999)
Winston Byrd : trumpet (fill in – 1998)
Dave Pietro : sax, flute (fill in – 1998)
Dale Kirkland : trombone (1995–1996, 1998, 1999–2001, 2002–2006, fill in - 2007)
Pat Hallaran : trombone (1998–1999)
James Fox : guitar (1998–2000)
Dan Zank : keyboards (1998–2000)
Zach Danziger : drums (1998–2001)
Joe Mosello : trumpet (2000–2002)
Gil Parris : guitar (2000)
Gregg Sullivan : guitar (2000–2004)
Phil Magallanes : keyboards (2000–2001)
Uli Geissendoerfer: keyboards (fill in – early 2000s)
Andrea Valentini : drums (2001–2012)
Darcy Hepner : sax, flute (1999 fill in, 2001–2004)
John Samorian : keyboards (2001–2003)
Nick Marchione : trumpet (2002–2004)
Eric Cortright : keyboards (2003–2004)
Leo Huppert : bass (2004)
Steve Jankowski : trumpet (2005–2013)
Rob Paparozzi : vocals, harmonica (2005–2011)
Scottie Wallace: vocals (alternating with Rob P. – 2005–2006)
Thomas Connor : vocals (fill in – 2006 & 2007, 2012)
Tommy Mitchell : vocals (Asian tour 2007)
Jens Wendelboe : trombone (2006–2013)
Chris Tedesco : trumpet (fill in for Mulet – 2006–2007)
Brian Steel : trumpet (fill in for Mulet – 2008)
Bill Churchville : sax (fill in for Timko – 2008)
Ken Gioffre : sax (2010– )
Jon Pruitt : keyboards (fill in for McClelland – 2010)
Ralph Bowen : sax (fill in for Gioffre – 2011)
Dave Anderson : bass (fill in for Foote – 2011, joined 2012–2013)
Jason Paige : vocals (2011–2012)
Bernard Purdie : drums (fill-in for Valentini – Summer 2011)
Joel Rosenblatt : drums (2012– )
David Aldo : vocals (2012–2013)

Current roster

Dave Gellis : guitar
Glenn McClelland : keyboards
Jon Ossman : bass
Carl Fischer : trumpet
Trevor Neumann : trumpet
Michael Davis : trombone
Ken Gioffre : saxophone
Joel Rosenblatt : drums
Bo Bice : vocals