Dave Okumu has been played on NTS over 20 times, featured on 25 episodes and was first played on 20 March 2013.

Dave Okumu (aka E-40), is a member of the London, UK jazz & jazz fusion scene, working with musicians such as Django Bates & Finn Peters - whilst, also, being a member of the London based fusion community F-IRE Collective. He has lead The Invisible, since it's formation, in late 2006.