Politically he stood beside Fidel Castro before the 1959 Revolution. In 1961, he went on tour in several countries with his musicians. His music, as well as his political activity, turned his concerts into a success. He was thenceforth called "El Cantor de la Revolución" (the singer of the revolution) and other world tours followed. A song of that clearly reflects this notion is the song titled, "Para nosotros siempre es 26"; A song that refers to the Moncada assault against the Batista government that ultimately failed and became the symbol of the revolution. More than an ambassador for Cuban music, he was an ambassador for Cuba.