OJ Mariano, born in 1979, is a Filipino singer who gained prominence as the second runner-up of the second season of ABS-CBN's reality singing competition Star in a Million. Following his success on the show, he released his debut album One Dream Come True under Star Records in 2006 and received the Awit Awards' Best New Male Recording Artist for it. Mariano also performed as a singer on ABS-CBN's The Singing Bee. He then transitioned into theater and acting, featuring in various local and international musical productions and films. In 2013, he won the Gawad Buhay Award for Best Male Lead in Musical. His notable singles include "If Ever You're In My Arms Again" from the album Ballads, "Sana'y Malaman Mo" (theme song of El Cuerpo), "Hanggang Dito Na Lang" (from Lobo original soundtrack), and "Pangako Ko" (theme song of Maria de Jesus).