Justin Bieber Flaunts His Stuff in New Calvin Klein Underwear Ad: See the Pics

UPDATE: There's another one! After this story was published, the Calvin Klein Twitter account shared a second photo from Bieber's campaign. See it below.

If you've got it, "flaunt" it.

That's Justin Bieber's message in a new photo from Calvin Klein's spring 2016 underwear ads, which the pop star posted Tuesday (Jan. 26) on Twitter.

I flaunt in #mycalvins. Introducing the @CalvinKlein spring 2016 campaign pic.twitter.com/qe8MvgHATZ

— Justin Bieber (@justinbieber) January 26, 2016

The CK account also shared a picture, letting Beliebers know they're "back in bed" with Justin Bieber.

Back in bed with @justinbieber. As feat. in the S16 global ad campaign photographed by Tyrone Lebon. #mycalvins pic.twitter.com/03UZf0Rf0j

— Calvin Klein (@CalvinKlein) January 27, 2016

Looks like Bieber took notes on the Zoolander 2 set of how to balance being fashionable and funny.

Watch Shirtless Justin Bieber Play Drums in New Calvin Klein Ad

Bieber isn't the only celebrity getting in on the #MyCalvins campaign: FKA Twigs and Kendall Jenner also unveiled their CK ads on Tuesday. Plus, the Calvin Klein Twitter account included a Kendrick Lamar ad in its cover photo.

i excel in #mycalvins. here's a first look at the new spring 2016 @calvinklein campaign, shot by tyrone lebon pic.twitter.com/d1QhG1aFIY

— FKA twigs (@FKAtwigs) January 26, 2016

I want to be with you in #mycalvins. My new Spring 2016 @calvinklein campaign... What do you do in yours? pic.twitter.com/QXVkdx9ylP

— Kendall Jenner (@KendallJenner) January 26, 2016

This, of course, isn't Bieber's first work with CK. In January 2015, Bieber debuted his first undies ad along with his memorable (and much-parodied) shirtless drumming commercial.

Drum roll… #mycalvins https://t.co/PDRe8Spt5x

— Calvin Klein (@CalvinKlein) January 6, 2015