[1] An alumnus of St. Patrick's Schools[1] and Siglap Pre-University Institute,[2] Ong became a full-time DJ at Perfect 10 987FM in 1993, and is also an emcee and voice-over talent for commercials.

It was on the Ego Trip that the characters short fart, Simone, The Godfather and the Honky Tong Man were born.

In 2006, Ong was suspended from broadcasting for two weeks by MediaCorp after being fined by the Media Development Authority of Singapore due to inappropriate content on the show Five Guys And A Girl which he hosted with Rod Monteiro.

[4] Ong then married former Star Sports personality and radio presenter Jamie Yeo in December 2004.

On 16 December 2016, Ong and Jean Danker were married in a seaside solemnisation ceremony at Sofitel Singapore Sentosa Resort & Spa.