It's pretty unbelievable that some people's actual job is to track down stars in the nude and then sell the pics but it is and Sia is the latest celeb to be targeted.
She's not having any of it though. She caught wind that someone was tryna sell nude photos of her, taking matters into her own hands by leaking a photo herself.
"Someone is apparently trying to sell naked photos of me to my fans. Save your money, here it is for free. Everyday is Christmas," she wrote on Twitter alongside a photo of her backside.
Sia had already planned to give us all an Xmas present in the form of her Christmas album Everyday is Christmas but it seems she's been forced to give us more than we bargained for.
You can see the tweet here, or if you're after something more PG you can hear her Xmas song Santa's Coming For Us below.