Argentine singer Clementina Culzoni sings in her concert Puro Tango in the International Theater in Frankfurt, Germany, on April 4, 2014. Culzoni presented Puro Tango on Friday evening in Frankfurt, unfolding the versatility of the traditional music of Argentina in a captivating show. (Xinhua/Luo Huanhuan)

Argentine singer Clementina Culzoni sings in her concert Puro Tango in the International Theater in Frankfurt, Germany, on April 4, 2014. Culzoni presented Puro Tango on Friday evening in Frankfurt, unfolding the versatility of the traditional music of Argentina in a captivating show. (Xinhua/Luo Huanhuan)