Justin was making his way out of the club via the back entrance when he was caught short, but rather than hold it in or use the club's loo like a normal person, he whips out mini-Biebs and relieves himself into a cleaner's mop bucket.
And of course, one of Bieber's idiot mates reckons that he's got total 'swagger' for doing it.
What a bunch of chumps.
One of them can be heard saying: "We swagger man, that's the coolest spot to p*ss. You'll remember that forever," before shouting that they are the "f**king Wild Kidz" as they make their way out.
Oh, and if that wasn't enough, Justin then shouts "f**k Bill Clinton" as he sprays a picture of the former President with cleaning product as he leaves.
His mum must be so proud.
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