One minute they’ve slimmed down, the next they’ve piled on the pounds, perhaps to play a new film role.
But these digitally altered photos take the weight game to the extreme – by transforming the stars into bodybuilders.
Keira Knightley is often criticised for being too thin – but she’s beefed-up here
Angelina Jolie complete with bursting biceps bigger than husband Brad Pitt’s
The images are created by superimposing the celebrities’ heads on to photographic images of bodybuilders.
And the results will certainly make you take a second take as they look bizarrely realistic – even though Winehouse’s scrawny frame has been transformed into a toned manly physique.
Imagine: Model Gisele Bündchen would hardly fit down the catwalk built like this
Cameron Diaz with muscles so big the veins in her arms are nearly bursting
The shots also show how photo trickery can truly transform the look of a person.
And it flies in the face controversial techniques glossy magazine use to make their front cover stars look thinner.
Larger than life: Sx And The City stars Kristin Davis, Cynthia Nixon, Kim Cattrall and Sarah Jessica Parker
Charlize Theron striking a rather unfeminine pose with killer calf muscles
Instead, the results show the stars as they could look as a serious athlete.
Clint Eastwood gets a makeover with bustling pecs and washboard stomach