Photos: See all of Justin Bieber's ab-tastic Calvin Klein ads

Justin Bieber flaunts his bits for Calvin Klein ad

Kendall Jenner and Justin Bieber cozy up in Vogue

Was Justin Bieber's Calvin Klein ad airbrushed?

EXO's Lay Zhang Flaunts His Stuff As Calvin Klein's First Chinese

EXO's Lay Zhang Flaunts His Stuff As Calvin Klein's First Chinese

An 'Insecure' Justin Bieber Apologizes for His Hair: A Hat Only

Justin Bieber, The Salty Ju

Justin Bieber Flaunts His Stuff in New Calvin Klein Underwear Ad

Yep, Justin Bieber's Calvin Klein Ads Were Probably Photoshopped

Justin Bieber flaunts his bits for Calvin Klein ad

24/7 friendly Customer Service Calvin Klein - Mark Wahlberg in a 1992 advertising campaign for Calvin Klein Underwear., calvin klein ad

Justin Bieber and Hailey Baldwin Make Out in New Calvin Klein Campaign

24/7 friendly Customer Service Calvin Klein - Mark Wahlberg in a 1992 advertising campaign for Calvin Klein Underwear., calvin klein ad

Justin Bieber flaunts his bits for Calvin Klein ad