Abaya was discovered by Raimund Marasigan of The Eraserheads during a battle of the bands in which Abaya's band Shirley Beans won first place. Marasigan, who was one of the judges for the night, invited Abaya to act as frontman for the band Sandwich in 1998. While Abaya was a member of the band, they released three albums: Grip, Stand, Throw; 4-track mind; Thanks to the Moon's Gravitational Pull.
While in Sandwich, he formed a band with his closest friends named Kjwan. Formed May 2003, Kjwan released their self-titled album in 2004 which included the carrier single "Daliri."
He joined MTV Philippines in 2003 and became one of the VJs until the dissolution of MTV Philippines under the Music Source Inc on January 1, 2007. Abaya had hosted a variety of shows, most including "Rockola on MTV" and "Massive". In September 2009, AYC hired him to man MTV Philippines' music station U92 for a weekly show.