Dżem
Dżem is a Polish blues and rock band from the Upper Silesian town of Tychy. It was founded in 1973, is but occurred only rarely in public until 1979. Members of the group are Beno and Adam Otręba, Maciej Balcar, Jurek Styczyński and Zbigniew Szczerbiński. Have become known primarily but in a traffic accident died in 2005 Paweł Berger and also deceased, former singer of the group Ryszard Riedel.