On 24 December 2015, Leong died due to neuroendocrine cancer tumors, aged 30.
Leong was a model and beauty queen before joining Astro and enjoyed some success as a television hostess.
Initially she was mostly cast in Singapore-Malaysia co-productions and made her debut in a Singapore-produced series in the 2008 drama La Femme.
In July 2013, the former Mediacorp artiste was diagnosed with multiple endocrine neoplasia (MEN) syndrome, and was later confirmed to have neuroendocrine cancer tumors in her liver.
On 24 December 2015, Leong was admitted to a hospital in Kuala Lumpur after suffering a relapse.