Justin Bieber strips down to wet white underwear

The pop star turned a day of wakeboarding into an X-rated photo shoot this week, after stripping down to his Calvin Kleins (white, of course) and hitting the water.

Here’s the result:

Fans won’t need to be reminded but this isn’t exactly the first time Bieber’s let it all hang out (so to speak).

Last July, he stripped and flaunted for a full moon photo which he shared on Instagram.

But that butt shot was nothing compared to the full frontal shots snapped by a paparazzo in October last year as the bratty star vacationed in Bora Bora.

It all got a bit more awkward when his dad Jeremy jumped online to brag about his son’s prominent ‘feature’.

“@justinbieber what do you feed that thing. #prouddaddy,” the singer’s dad joked at the time.