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

Justin Bieber flaunts his bits for Calvin Klein ad

Kendall Jenner and her chiselled abs give barechested Justin

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

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

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

Justin Bieber flaunts his bits for Calvin Klein ad

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

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

Justin Bieber's bare chest controversially covers 'Men's Health

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

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