Sydney's one of the best cities in the world. There's always something to do, and something on offer. You'll find yourself with an abundance of choices.
One such choice is to see a show at Qudos Arena. Smaller than its neighbour, ANZ Stadium it offers a more intimate environment with a capacity of approximately 20,000. It was formerly known as Acer Arena and Allphones Arena.
You could see a music show. The likes of Katy Perry and Ellie Goulding have played at the stadium and the atmosphere is awesome with various levels and a moshpit. The stadium can be converted for sports shows as well so if that appeals to you more than that's not a problem, you'll be able to enjoy yourself.