Sia is undeniably one of 2014's top breakout artists thanks to her stunning vocals and visuals in viral hits like "Chandelier" and "Elastic Heart." The Australian vocalist performed both of these hits on Saturday Night Live and stunned the crowd by taking the performance to a new level with dancers, mimes, and more. Not surprisingly, the notoriously press-shy singer refused to show her face and instead donned a black lace visor of sorts. As many had hoped, Sia also brought out 12-year-old Maddie Ziegler for "Elastic Heart." Sia finished up with a moving performance of "Chandelier," which has received Grammy nominations for Record of the Year, Song of the Year, Best Music Video and Best Pop Solo Performance.