There is more than one artist with this name:
1. Dubstep and Drum and Bass producers from UK.
2. Rap artist from New York, USA.
3. Hardcore Techno alias of Alec Empire
4. Alternative Rock band From Ireland.
5. A Japanese singer who posts his covers on Nico Nico Douga.
1. Nero say that they're best known for 'Ragga Puffin', but they're possibly being a bit modest here (as they are almost certainly being ironic when they say that the future of DJing is Paris Hilton).