Piotr Krzysztof Liroy-Marzec[2] (born July 12, 1971, in Busko Zdrój, Poland as Piotr Krzysztof Marzec), better known as Liroy (Leeroy), is a Polish rapper and politician.

He is one of the pioneers of rap and hip-hop culture in Poland.

His CDs include East On Da Mic (as PM Cool Lee), Albóóm, Bafangoo Part 1, L, Bafangoo Part 2 (Dzień Szaka-La), Bestseller and L-Nińo vol.

In 2015, he retired from his music career and was elected as a member of the Sejm.

[3] At the end of 2018 he joined the Propolish Coalition later renamed to Confederation KORWiN Braun Liroy Narodowcy.