There are at least four artists with this name, a Swedish rapper (1), a house DJ (2), a punk band from Siegerland, Germany (P.O.R.N.O.) and indie band from Kostroma, Russia.
(1) Porno (real name Pierre Toftgård) is a Swedish rapper who lives in both Norrtälje, Sweden and York, UK. He has managed to make a name for himself both in Sweden and abroad. This he has achieved by always releasing new material (often for free download) and participating in Sweden's biggest rap-battles years in a row.
He describes his own style as philosophical lyric battle-rap with the focus on flow and rhymes, reflecting on some his inspirational sources as Pharoe Monch, Eyedea, Big Pun, Louis Logic and Ill Bill.
(2) This artist has so far released 4 singles, the most popular of which, Music Power, has been remixed many times and features of a plethora of dance compilation CDs.