Getting to the bottom of the latest craze

A new fad for 'Scarlett Johanssoning' - posing partially naked in front of a mirror - is the latest craze on Facebook.

It comes after images purportedly showing the actress holding a towel with her bottom reflected in a mirror appeared online.

Since then, dozens of imitators have posted their own snaps recreating the pose on the social networking website.

They are collected on a special page - called 'scarlett johanssoning' - on Facebook.

As well as predictably glamourous snaps of semi-naked women, they include some tongue-in-cheek attempts to recreate the photo.

A Barbie doll, Ernie from Sesame Street, Paddington bear, Donald Duck, a pug dog and even a painting of President Obama are pictured in similar poses.

Reports surfaced earlier this year that hackers had stolen nude photos from up to 50 celebrities, including Miss Johansson, after breaking into their email accounts.

The FBI is currently investigating the hacking attack and is said to be closing in on those responsible.