Famous and popular chicken rice (and noodle) stall in the Chinatown Complex. There's always a queue and at lunch they keep serving until they run out of chickens and then they cook some more and open up again at 4pm.
It has a Michelin star which I can't really understand (I've had much better chicken rice) but it's extremely cheap (S$2 for chicken rice, S$2.50 for chicken noodles) and both are pretty tasty, especially with the pickled green chillies and red chilli sauce.