It all began when Scarlett Johansson fell down on a street in Glasgow in October 2012 (don't worry, she was making a film):

And now? Now the internet has picked up the ball and run with it. Or rather, picked up the picture and played with it. Here are just some examples from the good people of Reddit...

(Pictures via Imgur)

Also on HuffPost:

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  • Falling Stars

    Davina McCall

  • Falling Stars

    Nicole Kidman

  • Falling Stars

    Kate Moss

  • Falling Stars

    Donatella Versace

  • Falling Stars

    Kate Middleton

  • Falling Stars

    Dannii Minogue

  • Falling Stars

    Pamela Anderson

  • Falling Stars

    Prince Harry

  • Falling Stars

    Catherine Zeta Jones

  • Falling Stars

    Jessica Alba

  • Falling Stars

    Jay Kay (Jamiroquai)

  • Falling Stars

    Liam Gallagher

  • Falling Stars

    Lindsay Lohan

  • Falling Stars

    Agyness Deyn

  • Falling Stars

    Cameron Diaz