That has since changed with the influx of junk food tees into Singapore :P. They've been in the local scene (you can get them at Queen's Couture at Heeren) for at least 2-3 years now but I've only just caught on to the trend.
I just bought these two off a website and I think they're absolutely adorable:
Who can resist t-shirts this cute? I'm now officially a t-shirt convert. :)