German singer Masha Karell performs as Grizabella in 'Cats' during a photo opportunity in Vienna February 2, 2012. The musical composed by Andrew Lloyd Webber, based on 'Old Possum's Book of Practical Cats' by T. S. Eliot and originally performed in London's West End in 1981, is played in Vienna until May 28, 2012.[Photo/Agencies]

British singer Paul Knights (C) performs as Skimbleshanks in 'Cats' during a photo opportunity in Vienna February 2, 2012. The musical composed by Andrew Lloyd Webber, based on 'Old Possum's Book of Practical Cats' by T. S. Eliot and originally performed in London's West End in 1981, is played in Vienna until May 28, 2012.[Photo/Agencies]