OMG! Sia is an Aussie singer. Her song Chandelier completely blew my mind. I heard it on Malakhov NY Tonight show with the Voice winners. Chandelier was written and performed by Sia. Sia is 39 y.o. and born in Adelaide. STUNNING! It's a masterpiece - both Sia singing and the teen girl dancing. https://m.youtube.com/watch?v=ILTZ8qZbNK0