If you plan on seeing a concert at the Singapore Indoor Stadium here a few useful tips.
DO pick up your tickets before the show. I really didn't see a line at the box office when the show began but why take chances.
DO take the metro (MRT). It's affordable and the Stadium station is conveniently located. Take the Circle Line from any of the connecting MRT stations such as Doby Ghant.
DO give yourself PLENTY of time if you take a taxi to the concert. Expect plenty of traffic.
DO purchase a return ticket (If you don't already have an EZ Pass) at the MRT so you don't have to wait in line to purchase a ticket after the concert (very long line).
DO NOT plan on taking a taxi. You can try calling for one but chances are they will all be booked up and you will have a very long wait for one.
DO bring your cell phone and non-SLR type camera because you can take pictures during the concert.