DJ Kool explains How to Remain Relevant in the Music Business with Shelly Shell Williams #30for30  Shelly Shell Williams #30Interviewsin30 Days with Legendary DJ Kool. Rapper. The Legendary American DJ and rapper, known for Let Me Clear My Throat.  Born in 1958 in Washington, D.C., his influence from his years of working the go-go and rap circuits became apparent in his music.