Beauty is pain!
The reality star posted a Snap of her legs after the event, and they looked like an annoyed cat had gone on the attack.
The dress was inspired by Katy's actual cupcake dress that she wore on her California Dreams tour and is made up of 70 hand-painted, "mini cupcakes".
The doll also features hand-painted tattoos, sparkling pink shoes, a glittered candy cane mic and a waffle-cone stage complete with swirly pops, “ice cream” mountains and cotton candy clouds.
CLICK HERE to check out the auction!