He started as a student of Pinoy Dream Academy and became a first runner-up next to the grand star dreamer Yeng Constantino.
[1] He first appeared on television on Your Song and then won the role of Jeffrey in the prime time TV series Pangarap na Bituin.
He also starred in the action TV series entitled Palos portraying the role of Agent Enzo, together with Jake Cuenca.
[2] He made quite a stir in the music scene leaving such memorable hits as "Hiling" and "May Tama Rin Ako" .
On July 13, 2016, Siaboc, together with his cousins went to the police authorities in his hometown in Toledo, Cebu to clear his name in the station's watchlist due to allegations that he was involved in illegal drugs, as opposed to earlier reports of "surrendering".