WANT to know who ate all the pies and also tucked into chocs and cakes, too? Step forward Jessica Biel, Jessica Alba and Scarlett Johansson.

The Hollywood babes star in hilarious before and after slimming shots in a spoof ad for US TV show Jimmy Kimmel Live! They all did the “Jimmy K” diet – he ate 80% of what was on their plates.

Scarlett says before she tried the diet: “I hired a Ninja to slap the food out of my hand before I could eat it.”