X Factor's Caroline Flack has revealed the world's largest hanging mirrorball over the Millennium Bridge in London.

Smirnoff have put up the ball to celebrate the fact that we get an extra hour when the clocks go back this weekend.

It is a thousand times bigger than your average mirrorball and one and a half times taller than a double decker bus.

Caroline said: "What am I doing with my extra 60 minutes? Well, I'm working on X Factor and it's halloween, so Olly Murs and me are going out and partying dressed as a vampire bride and groom!"

The mirrorball will hang until Sunday 28th.