In Singapore, all males have to serve two years of National Service in the military upon reaching 18 years of age. Anyone who evades it is liable for a 5k fine and/or 3 years of jail term.
Recently there was this case of a 49 year old local who evaded his NS, went to England to study at the Royal College of Music and went on to become a famous pianist. He came back recently and was fined an amount "he cannot remember". He will be performing at the Esplanade next month. Compare that to a case in 1994, where a French citizen who evaded his NS was arrested, fined and made to perform 9 months of training.
So based on the above facts, this is how you can evade NS:
2. A world-class talent in any discipline (piano, painting, porn star, WWE wrestler)
Then simply return to Singapore once you are world-renowned and show remorse for evading your NS. Follow that by offering to perform in Singapore.
Damn it, if only I knew about this when I was 18. I would have evaded my NS and gone to US to be a porn star. With my 50 inch "talent" it would have only been a matter of time before I was world-renowned.
The news article about the case can be found here.