John Conant Flansburgh (born May 6, 1960) is an American musician. He is half of the long-standing Brooklyn, New York-based alternative rock duo They Might Be Giants, for which he writes, sings, and plays rhythm guitar. Commonly referred to by the nickname Flans or Flansy,[1] he is married to musician Robin Goldwasser, with whom he occasionally performs.

KNOWN FOR

Jimmy Kimmel Live!
2025
Late Night with Conan O'Brien
1993
Malcolm in the Middle
2000
Mickey Mouse Clubhouse
2006
Space Ghost Coast to Coast
1998
Higglytown Heroes
2004
The Oblongs
2001
Xavier: Renegade Angel
2007
The SpongeBob Musical: Live on Stage!
2019
Gigantic (A Tale of Two Johns)
2003
Mickey Mouse Clubhouse - Mickey Saves Santa
2013
They Might Be Giants: Venue Songs
2005

FILMOGRAPHY

All
Movies
TV
Acting
14
Directing
2
Writing
3
Sound
10
2025
Jimmy Kimmel Live!
as Self - Musical Guest
2017
They Might Be Giants: Live in London, 1990
as Himself
2015
They Might Be Giants: Live in Berlin 2013
as Self
2012
They Might Be Giants: Them Ain't Big Eye Ants
as Himself
2009
They Might Be Giants: Here Comes Science
as Himself
2008
Here Come the 123s
as Himself
2007
Xavier: Renegade Angel
as Computer
2005
They Might Be Giants: Venue Songs
as Himself
2005
They Might Be Giants: Here Come the ABCs
as Himself
2003
Gigantic (A Tale of Two Johns)
as Self
1999
They Might Be Giants: Live at the House of Blues, 1999
as Himself
1999
Direct from Brooklyn
as Himself
1998
Space Ghost Coast to Coast
1993
Late Night with Conan O'Brien
as Self - Musical Guest