Billed by the show as the "M16 of Samar", he is best known as the vocalist of the Cebu-based reggae band Junior Kilat, which is responsible for songs such as Original Sigbin (In Bisaya mythology, Sigbin is a mythical creature), K Fyne (Okay, Fine) and Ako si M16 (I am M16), which secured the Best Song in the 2005 NU Rock awards sponsored by the Manila-based rock radio station NU 107. That song bested most rock compositions of Manila-based bands though its lyrics are in Cebuano.
Together with one of his bandmates, Marabiles also co-produced and hosted the magazine show Ismol Tym (Small Time) on the independent Cebu-based cable channel RCTV prior to entering PBB.
Marabiles was evicted from the PBB house on Day 49 after losing to fellow nominees Zanjoe Marudo and Bianca Gonzalez through the people's vote. During his stay in the house, he composed (and performed) some songs that are in the Pinoy Big Brother Celebrity Edition soundtrack: Budoy Ako, a Visayan adaptation of Pinoy Ako, and Maligo Na Jam, based on his "Maligo na" (Take a bath already) rap, together with fellow housemates Rico Robles and Roxanne Barcelo.
