LeBlanc also contributed to the Artists United Against Apartheid song "Sun City", released in 1985. He later moved to London working with British mixer/producer Adrian Sherwood of On-U Sound, together creating the sound of funk noise giants Tackhead. Keith's landmark album Major Malfunction was of great influence to a whole generation of musicians. The album, a reaction to the 1986 disaster with space shuttle Challenger, started off a whole new genre of industrial music.
Apart from his work as a member of the legendary On-U Sound posse, LeBlanc released twenty five sampling cd's with loads of drum samples and sound effects, and also many solo projects from his label Blanc Records. Keith's writing production and drumming skills have attracted the likes of Living Color, Peter Gabriel, The Cure, Ministry, Nine Inch Nails, James Brown, Trevor Horn, Seal, R.E.M., The Rolling Stones, Annie Lennox, Jalal (Last Poets), The Stone Roses, Robert Palmer, ABC, Little Steven, Will Downing, Tina Turner, Depeche Mode, and many more.
His last project was released in August of 2023, and is titled The Chess Project - New Moves. The album features reimagined hits from the Chess Records catalog, and features Rolling Stones collaborator Bernard Fowler, Skip McDonald, Eric Gales, MonoNeon,Mohini Dey, Paul Nowinski, and Reggie Griffin.