Justin Bieber is happy to have you round to his house in Calabasas for a party, but you'll have to sign a $5 million waiver. Yep, that's right, TMZ.com have obtained a copy of a document that EVERYONE must sign before entering Bieber's residence, that warns that anyone who blabs about ANYTHING that happens inside the mansion will get sued big time. That includes "the physical health, or the philosophical, spiritual or other views or characteristics" of Bieber or the guests.

The document makes it very clear that anyone who violates the terms will automatically be sued for $5 million in damages. Oh, and if you tweet about the party? It's $5 million. If you Instagram anything from the party, it's $5 million. The form warns there might be activities which are "potentially hazardous and you should not participate unless you are medically able and properly trained," while risks include "minor injuries to catastrophic injuries, including death."

The pretty hilarious document confirms that Bieber's parties are easily as unruly as those thrown by the likes of The Rolling Stones and Led Zeppelin back in the day. So if you manage to get into one of the bashes and happen to see Bieber roaring through the hallway on a motorbike, don't you dare upload a Twitpic of that. Don't you dare.

In other Bieber news this week, Jon Bon Jovi hates the little fella.

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