Justin Bieber Rocks Nothing But Wet, White Undies After Taking a Dip in Iceland -- See the Pic!

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Nice to see those Calvin Kleins are being put to good use!
Justin Bieber posted a picture of himself going for a high five dressed in nothing but wet, white Calvin Klein underwear, after going on a swim while in Iceland.
"Glacier dip in #iceland," the singer wrote.

That's not the only time Justin has gone all Calvin & Abs on us. Last week, he posted another shirtless pic, from behind the scenes of his "What Do You Mean" music video.
The undies pic is one of several shots Justin is posting from his vacation adventure. On Monday, Bieber posed in front of a cross with his head in his hands, writing, "<3 u Avanlanna."

Now, watch Justin trying and failing to shotgun a beer in Las Vegas last week, because it's honestly straight up adorable.