US mezzo-soprano Joyce DiDonato performs at the Royal Albert Hall in west London on September 7, 2013 during the Last Night of the Proms. She will perform in Abu Dhabi in January. Pohto / AFP
US mezzo-soprano Joyce DiDonato performs at the Royal Albert Hall in west London on September 7, 2013 during the Last Night of the Proms. She will perform in Abu Dhabi in January. Pohto / AFP