Kat (stylized as KAT) is a Polish heavy metal band formed in Katowice in 1979. The word "kat" means executioner. KAT is one of the most important bands in Polish and East European heavy metal overall, and is also mentioned as one of the main precursors of thrash. KAT's most famous album is "" (The Breath of Extinct Worlds), considered an opus of Polish heavy metal. The band is best known for tracks "Czas zemsty" (Time of revenge), "Łza dla cieniów minionych" (A tear for the shadows gone) and "Wyrocznia" (Oracle).