IMAGES: The best butts in the world!

See who makes the booty list!

Kim Kardashian has the best bum in the world, according to the results of a new poll conducted by ZOO Magazine.

 The 31-year-old socialite beat off stiff competition from the likes of Rihanna, Scarlett Johansson and Pixie Lott to bag the coveted title.

Voted for by more than 2,000 readers of the magazine, the top 20 also featured the likes of Jessica Biel, Shakira, The Saturdays' Frankie Sandford and new mother Beyonce Knowles, who gave birth to her first child, daughter Blue Ivy, just last month.

However, despite causing a worldwide stir after she squeezed her buttocks into a curve-enhancing Sarah Burton for Alexander McQueen bridesmaids' gown at last April's royal wedding, Pippa Middleton only managed to bag 36th place.

Elsewhere, Cheryl Cole was notably absent from the top 20, while Jennifer Lopez and Kylie Minogue's famous derrieres only came in 22nd and 27th places respectively.

"Kim's curves are famous the world over, so there could only ever really be one winner when it comes to the World's Best Bum," Contactmusic quoted Damien McSorley, editor of the magazine as saying.

Move on to the following pages to see which other celebs made the booty list!

In second place we have the pop princess, who loves flaunting her curvy derriere to the cameras.

While British teen glamour model Geena Mullins came in third, singer Pixie nabbed fourth place.

Sexy Scarlett, with her voluptuous figure, came in sixth, following model Caitlin Wynters at five.

Don't we know her hips don't lie! Exotic Shakira makes it to 11, following glamour models (in this order) Charlotte Herbert, Keyra Agustina, Melissa D and Stacey Pool.

Next up is actress Jessica, who is more known for her fabulous figure than onscreen performances!

New mom Bey makes it to 15th place, edging up behind glamour babes Amii Grove and Jessica-Jane Clement who are in 13th and 14th position.

The British soap star has a behind to be envied, as is apparent from the ZOO list -- she makes it in at 16.

Author of sexy fiction Paige Tyler was in at 17 and girlie group The Saturdays' singer Frankie landed 18th spot thanks to her pert rear.

Greek model and Kim Kardashian lookalike Georgia Salpa finds herself just short of 20.

We're surprised JLo didn't finish off much higher -- the Latino diva's luscious bottom got her to 22.

Petite popster Kylie, whose butt has acquired legendary status thanks to her iconic hotshorts shows up at 27.

And finally, Her Royal Hotness comes in at a lowly Number 36 -- we can't imagine why, when her toned behind created such a media frenzy last year!