Italian actress Elisabetta Canalis (C) poses in a dress by British designer Vivienne Westwood with her host Austrian businessman Richard Lugner (R) and his wife Cathy ahead of the Opera Ball in Vienna February 12, 2015. The traditional ball is opened by the Austrian president and features a musical programme with solists 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: ENTERTAINMENT SOCIETY)