Stanisław Grzesiuk (Polish pronunciation: [staˈɲiswaf ˈɡʐɛɕuk]; 6 May 1918, Małków, Łęczna County – 21 January 1963) was a Polish writer, poet, singer, and comedian. He is notable as one of the few public figures to use and promote the singing style and dialect of pre-war Warsaw after their near extinction in the aftermath of the 1944 Warsaw Uprising. Source: Wikipedia (en)