NEW YORK, NY - JUNE 04: Singer-songwriter Sia (R) and guest attend the 2014 Wayuu Taya Gala Honoring Kimora Lee Simmons at Tr
Monica Schipper/Getty Images

Not only does Sia have the biggest solo hit of her career with "Chandelier," but she's also a bride-to-be! The Australian singer is engaged to Erik Anders Lang, a documentary filmmaker. 

Since Sia shies away from the spotlight, it wound up being the famously private singer's mother, Loene Furler, who confirmed the news to an Australian newspaper. 

Rumors were buzzing that the hit songwriter was engaged after she wore a small diamond ring on her left finger at a New York event last week (see above). Turns out that is her subtle engagement ring, a perfect fit for the reclusive singer. 

It will be be the first marriage for Sia. Previously, she was in a long-term relationship with girlfriend JD Samson of Le Tigre. The singer has been open about her bisexuality in the past, saying, "I don't care what gender you are, it’s about people."

Congrats, Sia!