The band Kat & Roman Kostrzewski is going on tour to promote their latest album Popiór released in 2019. KAT & Roman Kostrzewski is a music group formed by vocalist Roman Kostrzewski and drummer Ireneusz Loth. The band is described as one of the most important thrash metal bands in Poland. Both musicians and fans consider the band KAT & Roman Kostrzewski as an heir of achievements of the group KAT, founded in 1980. In addition to well-reviewed albums, the group won the hearts of fans with spectacular concerts alongside Metallica, Helloween, Overkill, Running Wild, Motörhead, Iron Maiden, among others.