Ferdinand Pascual Aguilar (born February 5, 1953), better known as Freddie Aguilar or Ka Freddie Aguilar, is a Filipino folk musician. He is best known for his rendition of "Bayan Ko", which became the anthem of the opposition against the regime of Ferdinand Marcos during the 1986 People Power Revolution, and for his song "Anak", the best-selling Philippine music record of all time. He is heavily associated with Pinoy rock.He is well known internationally, claiming fame as one of the best musician-songwriters from the Philippines.