Italian actress Elisabetta Canalis (L) and German model Cathy Lugner watch the opening ceremony of the Opera Ball in Vienna February 12, 2015. The traditional ball is opened by the Austrian president 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/Leonhard Foeger (AUSTRIA - Tags: SOCIETY ENTERTAINMENT)