This is the part of Katy Perry you thought they'd never ever take away from her: her peppermint-wheeled spinning bra has been deemed too dangerous for the pop star to keep on wearing.
The 27-year-old's trademark tour costume (see above video from her movie Part of Me) has been banned by insurers who are concerned the contraption will strain her neck.
"I keep being told the insurers are worried I will injure my neck," Katy revealed.
"I seriously doubt it could be lethal but they want a new bra designed that will not allow hair to be caught up.
"Well, I was always known at school as the over-the-shoulder-boulder-holder."
Katy's colourful array of wigs have taken a beating as a result of her danger bra.
"My hair got caught in the wheels of my spinning peppermint bra and began to coil around and around," she said.
"I'm forced to just go with it so, by the end of the song, it looked quite like I was licking my own t--. What a girl does for her art."
You've got to hand it to Katy she's managed to turn her boobs into whipped cream cannons, sushi, film reels, and so much more. View our latest gallery of the weird things Katy and other pop stars put on their chests: