Shortly after opening, the building hosted the 5th World Festival of Youth and Students. Many visiting dignitaries toured the Palace, and it also hosted performances by notable international artists, such as a 1967 concert by The Rolling Stones, the first by a major western rock group behind the Iron Curtain. In 1985, it hosted the historic Leonard Cohen concert, surrounded by many political expectations, which were avoided by Cohen in his prolonged introductions during the three-hour show.