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

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

Justin Bieber Calvin Klein Campaign Lara Stone

Justin Bieber flaunts his bits for Calvin Klein ad

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

Justin Bieber Reveals His Ab-tastic Calvin Klein Workout, But Did

Justin Bieber, The Salty Ju

Justin Bieber - Wikipedia

Photos from Justin Bieber's Shirtless Pics

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