...guess whose celebrity junk lives in a trunk like this? Serious face.
GALLERY: Let’s play Guess the celebrity bottom!
Celebrity bums - guess who the celeb bum belongs to...
From runway to, er, bumway...
Which celebrity flashed her be-hind on the Pam Hogg catwalk?□□Answer: Chanel muse Alice Dellal!
This US star LOVES her butt...
Yup, it's Coco Austin
Who keeps the world abreast of her and her hiney's daily goings on, by tweeting about it all. the. time. See.
Believe it or not this Baywatch butt is doing a protest
It's Pamela Anderson, who is rather bare, for PETA
Something about being Down Under
It's Kylie! Spinning around, doing the locomotion and basically having a brilliant bottom
Think this bottom is more than all Wright?
Then you probably fancy Mark Wright. Mmm bottoms.
This butt is like, never, ever, getting back together with...
...Taylor Swift. Who also has a splendid bottom
WHO DID A MARILYN AND THEN SOME AT CANNES!?
Okay, it's Arta Dobroshi...
And no, we don't really either. But this picture made us chuckle. And yes, we are childish, sorry...
YOU KNOW THIS! COME ON YOU DO!
It's Nicki Minaj - or Minass for the duration of this gallery. She gives excellent bottom.
When it comes to butts, the Price is right
Got an inkling? Higher, higher, lower, lower etc.
Relax, it's not Brucie. It's Katie Jordan Price, obvs
Mamma Mia
Yup, it's Amanda Seyfried. Girl crush swoon
Practice your curtsey, it's...
The queen. Of pop. Madonna, as seen on tour in September 2012.
She's the World Food Programme Ambassador
She's heatworld's World AmbASSador (ahem). It's...
Christina Aguilera. Good bottom
This is the 'I love my butt' dance
As kindly demonstrated by Jennifer Lopez.
This is NOT Amanda Holden's celebrity butt...
Unless she's seriously supple that is. Nope, it's definitely not. It's actually a photo bombing maverick mooner showing off his (or her?) civilian bottom. WHAT FUN.
Just be glad they haven't invented e-scratch n' sniff yet
This is Joe Swash, flashing his down under Down Under on I'm A Celebrity...Altogether now, I'm A Civilian... Get ME OUT OF HERE and to the next picture...
EYES ON THE BOTTOM PLEASE
David Beckham strips down to his kecks quite a lot, in the name of great H&M undies. He has a great bottom. EYES ON THE BOTTOM PLEASE. Unfortunately you can only see a small part of it in this picture. We tried finding a better shot but this front shot was all we hard. Honest. EYES ON THE BOTTOM PLEASE. Oh, who are we kidding. Cop a perve and then let's move on to...[Picture by: Alasdair McLellan for H&M. Thanks you Alasdair. Thank you H&M]□
The Female Butt
As seen on The Female Boss and X Factor judge - slash nice being -Tulisa Contostavlos.
WHO'S BOTTOM IS THIS THEN?
It's Amy Chillds, the clue's on the backdrop behind her.
It needs no introduction (it'll likely introduce itself) IT'S...
KIM KARDASHIAN'S BOTTOM! Who basically put the ass into KardASShian. Kim has definitely got one of the best butts in showbiz, agreed?
Mmm nice lemons
Oh Keef, he's such a larf!
Keith Lemon loves baring his butt. We love him for baring his butt. But most of all, we love that Kelly Brook's there, just hanging out with Keef's bottom.
You may wish you, your girlfriends or your girlfriend had a butt like this Fashion Panda's
But unless AMAZING X Factor judge Nicole Scherzinger is willing to sell her hiney, you'll just have to be content with looking at the above instead.Sidenote: We were going to make a crack about the PCD song Buttons - called Bottoms - it went a bit like this: "I'm telling you to loosen up my bottoms babe, but you keep frontin' me" Then we decided it sounded like poo, thought better of it... and wrote it anyway. ANYWAY MOVING ON...
TO THE MOST FAMOUS BOTTOM IN THE WORLD
Aka Pippa Middleton's Pippa Middlebum. A celebrity bottom in it's own right, it shot to the heady heights of stardom in 2011. You may have seen it in such classics as The Royal Wedding and, um, maybe at Wimblebum.
You can stand under her bum-rella, ella, ella etc
Which sexy star lives in a bottom like this? Clue: She sings songs that sound a bit like... 'Bumbrella'; 'Only bum in the world'; Bumba 1 (featuring Kardinal Offishall); 'Bum this town'… Yeah, we’ll leave it there shall we.
It's Rihanna. She is awesome, as is her bottom
And to bring you down to earth...
Who's bottom is this? Simon Cowell? Louis Walsh? Brad Pitt? heatworld's? No, of course it's not. The proud owner of this behind is...
Sacha (Borat) Baron Cohen. What a lovable ass
Stars like Rihanna, Katie Price, Tulisa Contostavlos, Madonna, Mark Wright and David Beckham are such a prudish bunch.
NO THEY’RE NOT.
We know this because on hearing that it’s National Ass Day (or Ass Week as far as Twitter's concerned) it has not been in any way hard to find the biggest names in Hollywood slash Brentwood flashing their actual ass-ets.
Big, flat, round, squidgy, wibbly, small and delicious – one thing’s for sure - we like celebrity butts. We cannot lie.
Best of all, this lot prove that even famous bottoms come in all shapes and sizes, sometimes they’re bare butts, sometimes they’re bear butts – but they are ALL good butts.
Even X Factor star Rylan Clark’s getting in on the bum festivities, tweeting on Thursday: “En route back to wembley for sound check, heard its #NationalAssDay.. Always a few days ahead ain't I”
Yes RC, yes you are.
Now back to butt business. Have a look at the celebrity bottoms in pictures below, let us know who YOU think has the best bottom in show business.
And for the rest of National Ass Day Week (slash the rest of time) be sure to hold your head – and bottom – up high. Because no matter what life throws at you, your trusty butt is behind you, every step of the way.