It may be cold outside but some of your favorite artists are already heating it up for spring, thanks to the new “In #MyCalvins” campaign.

The annual worldwide crusade features artists up close and personal with a simple message: what they do in their Calvins. Bieber, the poster boy for the campaign, almost bares it all in black briefs, where he says he “dreams” in his Calvins. The campaign also includes singer FKA Twigs and model Kendall Jenner.

Unlike his campaign mate, Kendrick Lamar kept it cool in an all-white Calvin Klein t-shirt. The To Pimp A Butterfly rapper says in his Calvins he “reflects.” Kendrick’s snapshot shows him taking an unconventional selfie, equipped with a digital single-lens camera. Another artist who doesn’t reveal too much skin is Fetty Wap, donning an all-black Calvin Klein t-shirt. The New Jersey born rapper states he “makes money” in his Calvins. Rapper Joey Bada$$, known for speaking up about racial injustice and other social issues, kept it raw by proclaiming he “pledges” in his Calvins.

Along with these hot rap stars, FKA Twigs says she “excels” in her Calvins. The Spring 2016 line was shot by photographer Tyrone Lebon, who’s photographed the likes of Willow Smith, Miley Cyrus, Iggy Azalea and more. Calvin Klein has clearly taken a liking to some of Hip Hop’s brightest stars, bringing Kendrick, Fetty Wap, and Joey Bada$$ along for their first campaign this time around.

I reflect in #mycalvins @calvinklein

A photo posted by Kendrick Lamar (@kendricklamar) on