[citation needed] Quiambao competed at Miss Universe 1999 reaching first Runner-up, with Mpule Kwelagobe of Botswana winning the title.

In December 1999, she co-hosted Unang Hirit with Arnold Clavio, Lyn Ching-Pascual, Suzi Entrata-Abrera, Mickey Ferriols and Ryan Agoncillo.

[citation needed] In 2002, Quiambao appeared in a Mister Donut Twist commercial, where she reprised her fall at Miss Universe 1999.

[citation needed] In the same year, Quiambao co-hosted the show Palaban on GMA 7 with Winnie Monsod and Malou Mangahas tackling current events, socio-economic and political issues in the Philippines.

In 2007, she also hosted for QTV 11's Dahil Sa Iyong Paglisan, a made for TV show highlighting the experiences, trials and success of Overseas Filipino Workers.

[4] Quiambao was criticized by the LGBT community in the Philippines in early 2012 over her remarks about homosexuality on the current affairs talk show The Bottomline with Boy Abunda.

This caused a huge backlash with openly gay Filipino celebrities, with the rest of the entertainment industry criticizing her for such a "closed-minded" statement.

The couple celebrated their 10th wedding anniversary on March 24, 2024, before Pastor Joby Soriano at The Palms Country Club in Alabang, Muntinlupa.