Koong was also involved in song production for television series and films with "在我左右" for Mediacorp Channel 8's television series New Beginnings and "手中线" for the film Love Cuts starring Zoe Tay and Kenny Ho.

Koong had filmed two advertisements with Fraser and Neave, one of which featured her original song "Lala".

[8] She produced, wrote, and performed the theme song "Happiness isn’t Hard" (幸福不难) for Mediacorp Channel 8's television series The Dream Makers.

[8] That year, Koong was named "Top Downloaded Female Artist" by MeRadio at the 18th Singapore Hit Awards [zh] for the song "Happiness isn’t Hard".

[citation needed] Her 2015 single "All Alone" (当世界只剩下我一个人)Sub Theme Song which she wrote, produced and performed for The Dream Makers II.

[17] Koong was announced as the National Winner for Best Theme Song / Title at the Asian Academy Creative Awards on 30 September 2021, with her work "When It Leads Me Back To You", which she wrote, performed and produced for Mediacorp Channel 5's drama series Slow Dancing.