Wow-VIDEO: Pippa Middleton's bum gets its own YouTube series

Thought you'd heard the last of Pippa Middleton's backside? Nope. The owner of the most famous bum in Britain is about to be immortalized in her own YouTube series.The spoof is the handiwork of Alison Jackson, the artist and satirical photographer behind Doubletake (you remember? That programme with all the lookalikies?) who has made everyone's favourite posh party girl the victim of her latest stunt.The series is called 'How To Create The Perfect Pippa Bottom' and instructs viewers on how they too can develop a derriere that -- let's face it -- completely stole the show at one of the biggest televised events on earth.Naturally -- though no less disappointingly -- the videos don't feature the actual Pippa Middleton, but squint a bit and it might as well.Jackson told the Daily Mail: "I held auditions for a Pippa Middleton face and a separate Pippa bottom. It took several casting sessions to find the ideal bottom double, Gabriella Parris.