You guys know Sia - the Aussie singer with a love of wigs.
Recently she became aware that somebody was trying to sell naked photos of her.
As you can imagine, she probably wasn't stoked but she decided to beat the person at their own game.
She uploaded the photo herself on her Twitter and Instagram and we're applauding her. And so are her fans.
Also, check out that sneaky input of her album title in there! It's called "Everyday is Christmas".