Justin Bieber’s naked-butt picture: Turn around, Justin? Or oh-please-don’t?

See Justin Bieber. See Justin Bieber in Bora Bora. See Justin Bieber in Bora Bora baring his butt.

And everything else.

Really, that’s what Instagram is for.

The “Never Say Never� singer uploaded a shot of himself in the buff — rear view only — on Monday. Those not intimidated or horrified by Bieber booty may want to see the NSFW full image. No judgment here. Just remember, there are some things you can never unsee.

At any rate, the tropical scenery is lovely.

Of course, by Tuesday people were meme-ing the heck out of the image. Notable among the participants was Miley Cyrus, who gave the Biebs a twerk-worthy NSFW backside, a la Kim Kardashian.

Two recurring sentiments scattered through the more than alf-million comments posted by Tuesday: “Turn around Justin� and “Please don’t turn around Justin.� There are, obviously, pros and cons to both.

And now we know what the Calvin Klein Jeans underwear spokesman looks like without — well, without his Calvins.

Follow Christie D’Zurilla on Twitter @theCDZ and Google+. Follow the Ministry of Gossip on Twitter @LATcelebs.