Hokkien influence on Singaporean Mandarin
Singaporean Hokkien is the largest non-Mandarin Chinese variety spoken in Singapore. As such, it exerts the greatest influence on Colloquial Singaporean Mandarin, resulting in a Hokkien-style Singaporean Mandarin widely spoken in the country.
Source: Wikipedia — Hokkien influence on Singaporean Mandarin (CC BY-SA 4.0)