After donning a pair of tiny gold hot pants in her 2000 video Spinning Around Kylie became known as the star with the best bottom.

But last year a certain beautiful bridesmaid, Pippa Middleton, stole the singer’s thunder at the Royal Wedding after images of her derriere were broadcast around the globe.

Now, Kylie wants her crown back and she has challenged the 28-year-old to a ‘bum-off’.

Does it rear-ly matter? Kylie Minogue has challenged Pippa Middleton to a ‘bum off’ to see who has the best derriere