Justin Bieber Takes Off Clothes For Calvin Klein Ad

Justin Bieber has joined the slew of sexy celebrities such as David Beckham and Mark Wahlberg as a Calvin Klein model. The photos which Justin shared on his Facebook page with the caption “It Begins” shows a topless Bieber in skimpy undershorts – bulge and all. Another of Bieber getting close to model Lara Stone was shared on the designer’s Instagram account, for the Calvin Klein Jeans collection.