Argentine musician, novelist, and actor Leo Dan was considered one of the principal singers of the Nueva Ola (New Wave) music that that conquered Latin American radio, records, and discotheque dancefloors during the 1960s and '70s. He was a prolific recording artist with more than 70 albums charting in seven consecutive decades and selling tens of millions of copies. He composed more than 1,500 songs in a variety of genres including pop, rock, tropical, cumbia, tango, vallenato, bolero, ranchera, and mariachi. His biggest hits -- "Te He Prometido," "Siempre Estoy Pensando en E...