Ziegler has modeled for Capezio, Ralph Lauren, Fabletics, and Target, among other brands, and has performed in films, television shows, and concerts.
According to the star, someone was attempting to sell revealing snaps of her, so she beat them to the punch, sharing the snap in an angry Twitter post.
This was the best way Sia felt she could deal with that invasion of privacy.
Your mind would never eve got here if you didnt have some kind of guilty feelings under the surface.
So far, though, Sia is the only entertainer to have beaten paparazzi and hackers to the punch.