Slipmatt (born Matthew Nelson, 22 April 1967) is an English happy hardcore and rave breaks producer and DJ based in Essex, England. He was one half of rave act SL2, with DJ Lime, who had a 1992 UK hit with "On A Ragga Tip". Matthew Nelson began his professional DJ career in 1989 as the resident DJ for the Raindance rave event.In 1993, Nelson set up a new project, the SMD series (Slip Matt's Dubs). The first release, SMD#1, sold over 10,000 copies, with a further three installments following in the series.