You may not know Sia Furler. But you've certainly heard her work -- from Rihanna's "Diamonds" and Beyoncé's "Pretty Hurts" to David Guetta's "Titanium" and Flo Rida's "Wild Ones."
You may not know Sia Furler. But you've certainly heard her work -- from Rihanna's "Diamonds" and Beyoncé's "Pretty Hurts" to David Guetta's "Titanium" and Flo Rida's "Wild Ones."