The band released their debut single "Re-union"/"Much Too Much" in summer 2005 through White Heat Recordings, which received national airplay.
The low budget music video was filmed by directors Type2Error at the Tatty Bogle Club in London, where the band rehearsed.
On 22 June 2006, Les Incompétents' frontman, Billy Leeson was involved in an argument with New Zealander peace activist, former Green Party candidate, Christiaan Briggs, after getting off a bus in Camden Road, Holloway, North London.
[4] Leeson was in a coma, and listed in critical condition for three weeks following surgery to remove a piece of skull that was pushing into his brain, causing it to swell.
[9] In November 2007, a new band containing Paterson, Macpherson and Tommy Atomic of Ox.Eagle.Lion.Man released their debut single via the Transgressive Records.