Couples compete during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012. The two-week long event offers more than 500 free dance lessons, concerts and recitals. Hundreds of professional dancers compete in the championship and teach many the eight basic steps of the dance in the city where it was born.
Italy's dancers Eloina Martins, left, and Paolo Nelzi, second from left, among others, wait before competing during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
A dancer is helped to dress backstage before competing during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
Participant Ramiro Perez sprays his hair before competing during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
A couple competes during the Tango Dance World Cup 2012, salon category, in Buenos Aires, Argentina, on Aug. 20, 2012.
A couple competes during the Tango Dance World Cup 2012, salon category, in Buenos Aires, Argentina, on Aug. 20, 2012.
A dancer performs during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
A dancer has her hair done backstage during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
Participants wait backstage before competing during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
A dancer combs his hair before a mirror before competing during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
Dancers get ready backstage before competing during the 2012 Tango Dance World Cup in Buenos Aires, Argentina, on Aug. 20, 2012.
A couple rehearses before competing at the Tango Dance World Cup 2012, salon category, in Buenos Aires, Argentina, on Aug. 20, 2012.