Under the motto "Voices for Peace," numerous top-class artists from the classical, musical and pop music worlds will provide a special concert experience, the proceeds of which will benefit the people in Ukraine threatened by war. Stars of the opera world and classical music scene such as Rolando Villazón, the young singers Regula Mühlemann and Patricia Nolz as well as the Vienna Boys' Choir will use their voices for peace. Also taking part are star violinist Julian Rachlin, the Arnold Schoenberg Choir and the Musicians for Peace Orchestra conducted by Erwin Ortner, as well as the Janoska Ensemble.