Justin Bieber is kicking off 2015 in his underwear! The pop star teased his new Calvin Klein modeling gig on social media, sharing racy photos from the upcoming campaign, some of which show Bieber in nothing but tight white boxer briefs with his washboard abs on full display.

Bieber shared his excitement on Instagram, posting a pic from the photo shoot, writing: “Officially a part of the legacy. Check out http://calvinklein.com/justin for more. #mycalvins. #newfaceofcalvinklein.”