The Original Flight of the Conchords
In "The Third Conchord" episode (September 2, 2007) of HBO comedy series Flight of the Conchords, Jemaine Clemaine (Jemaine Clement) fires bandmate Bret McClegnie (Bret McKenzie) after taking on a new member, bongo player Todd (Todd Barry). Bret then forms this new band with keytar player Demetri (Demetri Martin).
After a very successful gig where Flight of the Conchords opens for The Original Flight of the Conchords, manager Murray (Rhys Darby) suggests they join into a supergroup. However, Todd and Demetri both quit to team up as The Crazy Dogggz instead.