Karaoke DJ Service business. Business Overview Karaoke singing has become wildly popular in the past decade and to back this statement up you do not have to look any further than your own community, as I am sure there is a local karaoke club or karaoke singing night. The requirements for starting a karaoke DJ service are basic; you need karaoke equipment, a good music selection, and reliable transportation. Of course a fairly decent singing voice is not going t o hurt business...