A tango dance couple compete in the stage category at the Tango Dance World Cup 2012. — AP Photo

Couples dance during the 2012 Tango Dance World Cup salon finals in Buenos Aires. — AP Photo

Couples prepare backstage before competing. — AP Photo

Argentina's Cristian Sosa, top, and Maria Noel Sciuto compete during the 2012 Tango Dance World Cup stage finals. — AP Photo

Argentina's couple Hugo Mastrolorenzo and Agustina Vignau perform during the final competition of Stage Tango. — AFP Photo

Argentine tango dance couple Diego Tevez and Sandra Sanchez compete in the stage category at the Tango Dance World Cup 2012. — AP Photo

Argentina's couple Nahuel Tortosa and Barbara Ferreyra perform during the final. — AFP Photo

Argentine tango couple Guido Palacios and Florencia Castilla compete in the stage category at the Tango Dance World Cup 2012 in Buenos Aires. — AP Photo

Facundo de la Cruz Gomez Palavecino (L) and Paola Sanz from Argentina celebrate after winning the Tango World Championship in Salon style in Buenos Aires. — Reuters Photo

Argentine Guido Palacios (L) and Florencia Zarate perform during the Tango World Championship Stage Tango final competition in Buenos Aires on August 28, 2012. — AFP Photo

Argentine Cristian David (R) Correa and Sabrina Amuchastegui perform perform during the Tango World Championship Stage Tango final competition in Buenos Aires on August 28, 2012. — AFP Photo

Argentine couple of Gabriela Yasmin Aguirre (L) and Hector Marciano Salinas dance during the semifinal round of the Stage Tango competition at the Tango Dance World Championship. — AFP Photo

Argentine couple of Sonia Gabriela Cantero (L) and Claudio Daniel Peralta dance during the semifinal round of the Stage Tango competition at the Tango Dance World Championship in Buenos Aires. — AFP Photo

Argentine Yanina Silvina Ferro (L) and Eric Adolfo Kahl dance during the Stage Tango competition semifinal round of the Tango Dance World Championship in Buenos Aires. — AFP Photo

Argentine couple of Sonia Gabriela Cantero and Claudio Daniel Peralta dance during the semifinal round of the Stage Tango competition at the Tango Dance World Championship. — AFP Photo

Colombia's couple Jorge Andres Padilla Mayo and Ana Zoraida Gomez Diaz perform . — AFP Photo

Argentine Yesica Esquivel (L) and Ariel Leguizamon dance during the Stage Tango competition semifinal round of the Tango Dance World Championship. — AFP Photo