Raul Marco Sison (born July 10, 1957, Tagbilaran City, Bohol) is a singer in the Philippines. Sison started his singing career after his triumph on a singing contest in Channel 7's noontime variety show Student Canteen in the late 70's and early 80's. 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 [his biggest hit thus far], 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. May Iba Ka Na Ba? is the first single lifted from Sison's comeback album, Hindi Ko Akalain, released by Star Records. The songs in the album perfectly captures that distinct OPM feel as proven in the tracks Hindi Ko Akalain, Baby, Puwede Ba?, Right Beside You, Try My Number and the lead single May Iba Ka Na Ba? The singer was simply doing live performances both here in the country and abroad. Sison has been part of the touring group called The Greatest Hitmakers composed of veteran OPM artists Rico Puno, Hajji Alejandro and Rey Valera. Aside from his hit-making albums, Sison also joined popular singers Rico J. Puno, Rey Valera and Nonoy Zuniga, collectively known as the Hitmakers. Sison and the group had a successful series of shows abroad, most of them in US cities such as Reno, Houston and Las Vegas. Sison emerges on the release of his love ballad collection titled Isang Pagkakataon, distributed by PolyEast Records. The album has been preceded by other newly written songs by Vehnee Saturno like Selos, Kahit Na Minsan Pa, Sa Iisang Puso Mo and Kwento. It also features Sabik Na Puso, a song that was penned by Sison. Isang Pagkakataon features five new songs from Vehnee Saturno. Aside from singing, Marco Sison was also joined in movie acting, his only movie Jose Rizal The Movie which he plays national hero Pio Valenzuela who accompanied with Jose Rizal (played by Cesar Montano), the historical drama movie was released on June 12, 1998 during the Philippine Independence's 100th Year Anniversary and released by GMA Films. The movie also won was Best Festival Movie in the 1998 Metro Manila Film Festival and directed by Marilou Diaz-Abaya.