Blas Diaz Figueroa, known as Blas "Sien" Diaz in the film and television industry, and better known as Sien el Moviemaker" in the music industry was born in 1977 in San Juan Puerto Rico. Sien is recognized for being the first reggaeton artist to be signed by the U.S. label known as "Terror Squad" with artist Fat Joe as his manager. Subsequently, ...