"Signing up for a liver transplant now," Perry tweeted on Saturday, poolside at the Hard Rock Hotel beach club.
Also on deck? "Inflatable objects consistent with bachelorette parties."
Totally expected, given Perry is the same pop nymph who brought us the exploding-whipped-cream-can brassiere. Perry also donned a prop bridal veil, clipped to the backside of her bikini bottom.