So you think you can Tango?
Russia's tango couple Dmitry Vasin, right, and Taya Finenkova compete during the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina. Couples from around the world competed in the finals Argentina's annual tango competition, the highlight of a two-week festival which this year honored Astor Piazzolla, the legendary composer and bandoneonista who revived the genre and infuriated purists by blending tango with rock music in the 1970s. Vasin and Finenkova finished fifth in the competition. (AP Photo/Natacha Pisarenko)