The most commercially successful Spanish singer of all time is Alejandro Sanz. His career began in the late 80's as a singer-songwriter. He earned a reputation as an industrious hitmaker in his native country of Spain and by the end of the 90's, Sanz became an International superstar with a ton of radio hits, most notably, one of the all-time greatest Spanish songs ever to hit the radio airaves, 'Corazon Partio.' Throughout the last fifteen years, Sanz has remained one of the best selling Latin ...