 Carnegie Hall cancelled a concert of the works of Louis Andriessen because pianist Gerard Bouwhuis was stranded in Amsterdam and the Bang on a Can All-Stars were unable to leave Frankfurt.The Yehudi Menuhin International Competition for Young Violinists, held in Oslo, Norway was also affected, it was scheduled to begin on 16 April but was postponed until 18 April due to traffic disruption.The appearance of pop singer Annie Lennox on the special "Idol Gives Back" episode of "American Idol" on 21 April was affected.