A question via PM was asked about the dress code for Saturday night.
I can answer for the gents and then I suppose the ladies can make assumptions from that.
It is hot and muggy and you will be most comfortable in cotton or other things that breathe (not suggesting wearing a live animal or pre-drunken phone call FTer though

).
Polo shirt/ t-shirt/ or similar and jeans or your favorite casual trousers is perfect. I do not see people going around in shorts all that much in SIN, although the ladies are partial to mini-skirts and no sleeves.
This is a dinner for which you might consider dressing as you would to go to a pizza place in the States. While all coming are not from the US, you have either likely visited or seen films about that mode of dress.
I plan to bring one pair pf jeans to see me through the whole weekend and a couple of t-shirts and a Raiders jersey.
Hope that helps anybody who may have had the same question.
Mike