The 20-year-old pop star Justin Bieber appeared in sexy pictures as the latest underwear model of famous U.S. fashion brand CALVIN KLEIN.

In a series of black and white photographs, which were made public on Tuesday, the Canadian singer is shown flaunting his tattooed body, and six-pack abs, alongside co-star Lara Stone.

Shot by fashion photographers Mert Alas & Marcus Piggott in New York City, the brand’s latest campaign features Bieber with Stone in key jeans and underwear styles of the season, furthering the iconic brands’ longstanding legacy of bringing fashion and music together.

Bieber couldn’t contain his excitement about the new advertisements, as he tweeted his status of being “Officially a part of the legacy.”

The 20-year-old singer is joining a list of celebrity models including Mark Wahlberg, Jamie Dornan, Kellan Lutz, Mehcad Brooks, and more.

The latest Calvin Klein Jeans campaign has been directed by Johan Renck and features global superstar Justin Bieber and supermodel Lara Stone.