Paweł "Popek" Rak also known as the "Popek Monster" - is a Polish rapper and MMA fighter permanently residing in London. In 2000, together with such rappers as Bosski Roman, Tadel, Pomidor and Kali founded the "Firma". Popek creates music from the border of dubstep, grime and gangsta rap. In the past, he served a 7-year prison sentence. Solo activities began in 2007, have since released three albums, including one illegal. The album Monster received a gold disc in Poland, the Czech Republic and Slovakia. "Firma" has recorded 6 albums, Popek however, was not involved in the production of NieLegalne Rytmy. Kontynuacja.He collaborated with such artists as Jędker, Sokół, Peja, Virus Syndicate, Tempa T, P Money, Devlin and Wiley.