Former U.N. Secretary-General Kofi Annan and his wife Nane (R) arrive for the Opera Ball in Vienna February 27, 2014. The traditional ball is opened by Austrian President Heinz Fischer (C) and features a musical programme with soloists and artists from the Vienna Philharmonic and State Ballet before the 144 debutants and debutantes lead into the festivities with a Strauss waltz. Tickets start at 250 euros ($340) and a box costs as much as 18,500 euros ($25,000). REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: SOCIETY POLITICS)