Vote: Pippa, Sonam and more booty-hot babes!

Here are some sexy sirens with spectacularly curvy behinds -- vote and let us know who you think rules the roost!

The younger Middleton sister's derriere has won millions of fans around the globe ever since she wore her figure-hugging bridesmaid's dress to the Royal Wedding last month.

Pippa's figure-hugging number won so much appreciation that 'Her Royal Hotness' now has a website and Facebook fan page dedicated exclusively to her derriere!

But there's a lot of competition out there from some equally stunning curvy ladies, so take a look at the following pages and let us know who you think has the best behind!

Move on to the next slide and register your votes on the last page of the slideshow.

The B-Town fashionista has been creating ripples at Cannes with her haute couture outfits and newly-noticeable curves. In fact, rumours are doing the rounds that she wore butt enhancers on the red carpet! What do you think?

Move on to the next slide and register your votes on the last page of the slideshow.

Reality Tv starlet and socialite Kim has, possibly, one of the most famous backsides in the world. And she's proud of her voluptuous bod!

Move on to the next slide and register your votes on the last page of the slideshow.

Madame Mallika has never shied away from showing off her fab figure and her ample assets are the fantasy of men everywhere!

Move on to the next slide and register your votes on the last page of the slideshow.

This pop princess is filled out perfectly, in all the right places. The pic proves exactly what we're talking about!

Move on to the next slide and register your votes on the last page of the slideshow.

The sexy Czech import has the face of an angel and a bod to die for -- she sizzles in a bikini and pretty much anything else!

Move on to the next slide and register your votes on the last page of the slideshow.

Victoria's Secret beauty Adriana fills out lingerie like no one else can -- wonder if the Brazilian butt lift is the secret to her sensual silhouette?

Move on to the next slide and register your votes on the last page of the slideshow.

Actress, former VJ, singer -- but Sophie is still known best for her seductive gaze and ability to carry off the skimpiest outfits.

Move on to the next slide and register your votes on the last page of the slideshow.

No best butt list would be complete without this hot Latina. JLo is the original bootylicious babe, what say?

Move on to the next slide and register your votes on the last page of the slideshow.

Our Munni could easily give Ms Lopez a run for her money in the derriere department -- and we all know how her dance moves enhance her natural charms!

Move on to the next slide and register your votes on the last page of the slideshow.

Hollywood starlet Jessica may have a forgettable body of work ,but she has an unforgettable body for sure!

Move on to the next slide and register your votes on the last page of the slideshow.

Mrs Raj Kundra has built a business empire on her flawless figure -- we could gaze at it all day!

Move on to the next slide and register your votes on the last page of the slideshow.

The Israeli supermodel often gives us a glimpse of her super contours in lingerie, showing ex-boyfriend Leonardo DiCaprio just what he's missing!

Move on to the next slide and register your votes on the last page of the slideshow.

We hope seductive Sameera never follows the size zero Bollywood trend -- her sultry appeal lies in her voluptuousness!

Move on to the next slide and register your votes on the last page of the slideshow.

She coined the term 'bootylicious' and she was entitled to do so -- Beyonce's booty is definitely too hot to handle!

Move on to the next slide and register your votes on the last page of the slideshow.

Piggy Chops has a mean set of chops -- yes, we mean legs, hips, butt, the whole package!

Move on to the next slide and register your votes on the last page of the slideshow.

Approaching 40, Naomi's tall, taut body shows no signs of ageing, especially in the rear department!

Move on to the next slide and register your votes on the last page of the slideshow.

Katrina often likes to remind her fans that she was a model before she was an actress. Hope we get to see her in a bikini again sometime!

Move on to the next slide and register your votes on the last page of the slideshow.

When the Colombian cutie says her hips don't lie, you better believe her -- she knows what she's talking about!

Move on to the next slide and register your votes on the last page of the slideshow.

And finally we have Dippy, whose sporty background shows in her -- err -- back!

Move on to the next slide and register your votes.

So who is the lady with the hottest derriere? Take the poll below and let us know!