Justin Bieber hosted a rager on Friday night, one visited by the cops on three different occasions due to neighbor complaints over the noise.
But authorities weren't the only ones at the shindig, of course. It also played host to over 100 guests, according to various sources.
And TMZ has obtained the confidentiality agreement these guests were forced to sign at the door, as the document makes it clear they cannot Tweet, text, Facebook or communicate in any way about events inside Bieber's mansion.
Those who break the deal will be on the hook for $3 million.
Justin made attendees and employees sign a similar agreement for an event this spring, though the price tag on their loose lips in that case was $5 million.