Pomoy bested 13 other grand finalists after garnering 19.56% of the text votes.
The "doble-kara" performer took home a whopping P2 million in cash prize.
Meantime, dancing duo Happy Feet and Hip-hop dance group Freestylers were the 2 other grand finalists who comprised PGT’s top 3. They got 18.32% and 9.46% of the text votes, respectively.
During the PGT's Performance night on Saturday, the 27-year-old singer from Cavite dubbed as the "Man with the golden female voice" wowed the crowd with his rendition of "The Prayer."
Pomoy, who has been consistently topping PGT's text votes, received three standing ovations from judges Ai-Ai delas Alas, Kris Aquino and Freddie M. Garcia.
The two-part finale featured the spectacular performaces of 14 finalists on Saturday and the results night on Sunday at the Araneta Coliseum in Quezon City.
PGT's most-awaited episode on both nights topped the worldwide trending topics of microblogging site, "Twitter."
Prior to Pomoy, singer Jovit Baldivino was hailed as the PGT's grand winner last year.