Disco1 & Karaoke Leon : Professional DJ Disco & Karaoke The Best Karaoke in Stevenage & possible Hertfordshire.. maybe the world?? Come and have a look! Open Mic Nights & Karaoke, Weddings & Hire DJ & Singer, Leon has been entertaining crowds for years, started 19 years ago. Front Man for Bands Stunt Pigeon, Rock Liquor & Poker, Function Bands. Sound engineer, DJ, Karaoke Host.