Apparently, if its not your party, don't cry or speak about it!

Why? Well, Justin Bieber says keep your mouth shut when it comes to his bottle-popping soirees, according to Vibe Magazine.

To make sure that his party guests are on a "mums the word" type swagger, he makes them sign a NDA or non-disclosure agreement if they want to partake in the festivities at his home in Calabasas, Calif., according to TMZ. And if you get a case of loose lips, it will not sink ships.

Instead, it will cost you $5 million in a dramatic, pocket-emptying lawsuit.

His advice? Skip talking about the "physical health, or the philosophical, spiritual or other views or characteristics" of any partygoers, and refrain from instragrammering, facebooking, tweeting or blogging after the event.

The "Boyfriend" singer also warns that there might be "potentially hazardous" activities going on there, and do not participate unless you are "medically able and properly trained." Do we need some type of certification to attend one of the Biebs parties?

Tell us what you think below!