When Ong sang his blind audition piece "Paano" (original by Gary Valenciano) for The Voice of the Philippines Season 2, he impressed the judges and the Filipino viewers.
From being a member of a boy group named "Voices of 5", he started doing a plenty of song covers, such as "All of Me", "Kahit Maputi Na Ang Buhok Ko", "Rude" “ Ikaw Na Nga" which gives new flavour to the listeners and posted it on his own YouTube channel which gained hundreds and thousands of views.
[3] While in 2014, he decided to join ABS-CBN's reality singing competition, The Voice of the Philippines (season 2).
Among the three coaches, he chose the international artist, record producer and Black Eyed Peas member, apl.de.ap.
He is a member of the all-male vocal trio BuDaKhel along with Bugoy Drilon and Michael Pangilinan, and currently managed by KreativDen.