Mário Cotrim, mostly known by his stage name ProfJam (born 6 June 1991), is a Portuguese rapper and hip hop singer. Profjam started doing his own rhymes in 2008. His first exposition to the Hip Hop audience occurred when he participated in the Portuguese competition "Liga Knockout", where rappers had to make their own rhymes in order to defeat their opponent in a 1v1 punchlines battle. Later on, he went to London to pursue a degree on Audio Production, in the SAE Institute.