"Purest of Pain (A Puro Dolor)" is a song recorded by Puerto Rican band Son by Four. It was written by Omar Alfanno and released as the first single of the second studio album of the band in 2000. Alfanno declared that he wrote the song in ten minutes, and that after the success of the track, he analyzed the composition, since he did not understand how "A Puro Dolor" became that popular. He named it "the Cinderella of all his songs." Two versions of the track were produced by Oscar Llord for the

Puro Dolor Karaoke with Lyrics