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Ready, set, pose: Kendall Jenner looked every inch the supermodel while on the red carpet in Hong Kong on Thursday for the Calvin Klein Live event

Strike a pose! The sister of Kim, Kourtney, Khloe, Kylie and Robert had her moves down

A look to remember: The photogenic Calabasas native gave a soft smile to the camera as she let her tight top do the talking

After steaming up billboards worldwide, the pair joined forces at the event, each taking their turn to walk the carpet and stop for photographs.

The reality-turned-catwalk star commanded attention by perfectly positioning her long limbs and slender physique while simultaneously staring down the camera emotionless.

However, Justin had a trick up his sleeve – or in this case, under his shirt – to win their pose off.

She’s got it: The 19-year-old reality turned catwalk star commanded attention by perfectly positioning her long limbs and slender physique while simultaneously staring down the camera emotionless

Working it: The reality turned catwalk star made sure to work all her angles on the red carpet

Simply stylish: Kendall stepped out in a slightly sheer grey button up Henley with a short leather skirt featuring duelling zips up the front

Close on the carpet: The daughter of Caitlyn Jenner, 65, looked happy as she stood with pal Yoon

They don’t see eye to eye… but they don’t have to: The leggy model put her arm around Kevin Carrigan

LOL: The pose of of course was nothing serious and the pop star and model appeared to be having a balst

Starting off slow, the Baby star did his signature stare down the camera with his eyebrows raised.

But then he really brought out the big guns, pulling up his shirt to reveal his muscular torso.

While the move would have had Beliebers passing out left right and centre, it also sent photographers crazy as they snapped furiously away.

What lies beneath: The Keeping Up With the Kardashians star proved she practicing what she preaches

Of course, the pop star cannot take all the credit for knowing exactly what pose to pull.

Pulling up one’s shirt to reveal chiselled abs and your Calvin Klein underwear was the signature and iconic move of Mark Wahlberg.

Now a big time actor, back in the Nighties the star was a musclebound heartthrob and rapper when he was named the face of the designer’s underwear collection.

Less is more: The Beauty And The Beat crooner wore a pair of straight leg black jeans with a white T-shirt and grey shirt

His inspiration: Showing off your chiselled abs and Calvin Klein underwear was the signature move of Mark Wahlberg (seen here in 1992)

In Mark’s day – then known as Marky Mark – his Kendall was Kate Moss.

But 20 years on, the newbies were really stepping it up a notch with their pose off turning physical – turning into a cartwheel competition.

Despite running the risk of showing off her Calvins without meaning to, Kendall busted out the gymnastic move – with Justin following suit – in the middle of the red carpet.

For their walk down the red carpet, both Kendall was dressed head to toe – and undergarment – in Calvin Klein.

And boom: Really bringing out the big guns, Justin pulled up his shirt to reveal his muscular torso

Are you ready? Starting off slow with his poses, the Baby star did his signature stare down the camera with his eyebrows raised

The 19-year-old stepped out in a slightly sheer grey button up Henley with a short leather skirt featuring duelling zips up the front.

Keeping her look simple, Kendall wore the minimal look with a pair of Stuart Weitzman Nudist sandals.

Having to compete with the six-pack flashing Justin, the Keeping Up With The Kadashians star tied her top up revealing that while she may not have the same definition, she too has some pretty impressive abs.

Added extra: As he proved to the waiting photographers, the singer accessorised with a pair of black Calvins

For his strut down the carpet, Justin also went for a less is more look.

The Beauty And The Beat crooner wore a pair of straight leg black jeans with a white T-shirt and grey shirt.

And, as he proved to the waiting photographers, he accessorised with a pair of black Calvins as well as black boots.

Quite a process: While simple and well executed, it was not Justin’s first choice of outfits and took him a couple of attempts to achieve

getting a little help: Earlier in the day, the star posted a picture of himself and a stylish trying out looks with two racks of options behind him

While simple and well executed, it was not Justin’s first choice of outfits and took him a couple of attempts to achieve.

Earlier in the day, the star posted a picture of himself and a stylish trying out looks with two racks of options behind him.

Justin also picked a black T-shirt over a short sleeve sweater which he wore in an impromptu shoot with Kendall just before their appearance.

Surprise: Of course, while he may have been giving Kendall a run for her modelling money, at heart the star is a singer so surprised the waiting crowd with a performance

Posting a picture of the snap session, Kendall showed the pose off was all in fun, as the two famous clothes horses were both laughing and smiling away and she captioned it simple ‘LOL’.

Justin also changed into the black T-shirt and Kendall into a black tank for their cartwheel competition.

Of course, while he may have been giving Kendall a run for her modelling money, at heart the star is a singer so surprised the waiting crowd with a performance.

Warm up: The 20-year-old got some pose practice in on Instagram before the event