Music Sia Marries Filmmaker Erik Anders Lang By Jackie Willis 5:56 AM PDT, August 4, 2014 Getty Images Sia must be swinging from the chandeliers!Just two months after going public with her engagement to documentary filmmaker Erik Anders Lang, the 38-year-old Australian singer/songwriter-- whose voice is heard on David Guetta's Titanium and Flo Rida's Wild Ones-- married her man. RELATED: Guess Who Else Got Married This Weekend!The couple tied the knot on Saturday night at Sia's home in Palm Springs, Calif., E! reports. The "Chandelier" singer tweeted: "Omg omg I'm so excited."Omg omg I'm so excited— sia (@Sia) August 2, 2014WATCH: Lena Dunham Performs Sia's ChandeliersCongrats to this hip couple!