Raul Marco Sison (born July 10, 1957) is a Filipino singer, actor, and politician.Sison started his singing career after his triumph on a singing contest on GMA Network's noontime variety show Student Canteen in the late 1970s and early 1980s. Being one of the classic balladeers to have captured the true vocal essence of OPM in the '80s, Sison was responsible for the songs "My Love Will See You Through" , "Si Aida, Si Lorna, O Si Fe", "I'll Face Tomorrow", "Always" and "Make Believe".In 1991, the Philippine independent record company, Universal Records, released Best of Marco Sison. The album consists entirely of romantic, easy-listening music, a style of music quite popular in the Philippines. In 1992, Sison released After All These Years. In 1999, Sison released Memories, his first album for local independent record company, Viva Music Group. One of the international hits covered by Sison in the said album is Crazy. The album also includes Someone That I Used To Love and Kung Maibabalik Ko Lang.