While most stars are busy working off the half pound they put on over the holiday period, others such as Jessica Simpson, Jennifer Lopez and Amy Winehouse have become rolly-polly overnight courtesy of some digital trickery.
Katie Holmes has reportedly kick-started her 2009 with a Scientology-approved detoxifying regime called Clear Body, Clear Mind.
Meanwhile, Jennifer Aniston is battling the bulge as she approaches the big 4-0 with some bendy yoga moves and early morning jogs.
Even Amy Winehouse - who formally liked to conserve her energy for late night drunken rampages - has taken to exercising in recent weeks.
But even those stars who have been slacking on the gym/diet front can feel safe in the knowledge that their lumps and bumps will be brushed away by the Photoshop fairy.
So they will no doubt be mortified to see what the evil geniuses at worth1000 have come up with...
See it all go pear-shaped below
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