Justin Bieber and Kendall Jenner play mad libs in sexy new Calvin Klein campaign

Justin Bieber and Kendall Jenner have already fronted Calvin Klein campaigns, but the newly released spring 2016 ads might just be their most sultry yet. Stripping down for a collection of shots by photographer Tyrone Lebon, the model and singer show off their perfectly toned bodies in good company; fellow stars posing for the campaign include FKA twigs and Kendrick Lamar.

TAP TO VIEW GALLERYJustin Bieber smoulders for Calvin Klein's spring 2016 campaign.

Standing in front of a gorgeous pink and yellow sunset, Justin looks every inch the ultimate heartthrob in "My Calvins" boxers and an all-black ensemble. The "Love Yourself" hitmaker and upcoming Grammy performer showed off his toned abs under his open jacket, giving fans a peek at some of his famous tattoos.

"I glow in #mycalvins," reads the singer's slogan, as part of the campaign which encourages fans to reveal what they do with the brand's famed garments.

As well as the racy shot, Justin took to Instagram to share a tongue-in-cheek photo of himself wearing the boxers and standing alongside a statue, jokingly mimicking its pose. "I flaunt in #mycalvins. Introducing the @CalvinKlein spring 2016 campaign," he quipped in the accompanying caption to his 55.4 million followers. The snap quickly garnered millions of likes, marking the second time he has caused a social media meltdown in a campaign for Calvin Klein.

I flaunt in #mycalvins. Introducing the @CalvinKlein spring 2016 campaign

A photo posted by Justin Bieber (@justinbieber) on

Justin shared another photo in which he jokingly mimicks a statue's pose

Kendall, meanwhile, worked her model credentials in the stunning shots, sizzling in light jeans and a matching black panties and bra set, showing off her enviably lithe figure. The 20-year-old added a touch of high-fashion glamour to her casual look with an oversized sequinned coat as she revealed she "stands tall" in her Calvins.

Kendall Jenner also turned heads in the striking images.

The Keeping up with the Kardashians star also took to Instagram to tease her 47.4 million followers with a short clip of a series of polaroid photos of herself rocking the label's world-famous underwear.

Kendall first became a brand ambassador for Calvin Klein in March 2015, when she was revealed as the face of their My Calvins denim collection. She joined a star-studded line-up including Kate Moss, Victoria Beckham, David Beckham and Lara Stone, all of whom have modelled for the American fashion house and its various lines.

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