Argentina's dancers Facundo de la Cruz Gomez Palavecino, right, and Paola Sanz celebrate after winning the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)
Couples prepare backstage before competing in the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)
Argentina's dancer Cristian Lopez is seen reflected in a mirror as he combs his hair before competing in the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)
Dancers prepare backstage before competing in the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)
Argentina's couple Facundo de la Cruz Gomez Palavecino, right, and Paola Sanz dance after winning the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)
Russia's tango couple Dmitry Vasin, right, and Taya Finenkova compete during the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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)
Argentina's dancers Facundo de la Cruz Gomez Palavecino, right, and Paola Sanz kiss as they celebrate after winning the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)
Couples dance during the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)
Argentina's dancers Facundo de la Cruz Gomez Palavecino, left, and Paola Sanz celebrate after winning the 2012 Tango Dance World Cup salon finals in Buenos Aires, Argentina, Monday, Aug. 27, 2012. 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. (AP Photo/Natacha Pisarenko)