Psycho: An Alfred Hitchcock thriller, based on a pulp novel by Robert Bloch and adapted by Joseph Stefano, which becomes a landmark in graphic violence and cinema sensationalism. The screeching violins heard at this point in the song are a trademark of the film's soundtrack. Belgians in the Congo: The Republic of the Congo (Leopoldville) was declared independent of Belgium on June 30, with Joseph Kasavubu as President and Patrice Lumumba as Prime Minister.