Justin Bieber may sue guests at his infamous house-parties if they blab about what goes on inside the huge mansion in Calabasas. The 19-year-old is asking all revellers to sign a waiver before they step foot in the premises, making them liable to pay $5 million in damages if they Tweet, Instragram or talk to the press about the parties.

According to TMZ.com - who obtained a copy of the waiver - Bieber has had the document drafted up after months of bad publicity. The goings-on at his parties being made public could be disastrous for the apparently clean-cut pop star. "Under no circumstances will you divulge the details of you entering and being on the Property or engaging in the Activities by any means or through any media whatsoever, including without limitation, through photographs, video, blogging, texting, 'Tweeting' or posting any such information on any social media site," the waiver said. Guests are told not to reveal the "physical health, or the philosophical, spiritual or other views or characteristics of the Released Parties [Bieber]" which includes photographs, likeness, tapes, films, videos and other recordings.

The Beauty and Beat singer paid $6.5 million for the 7-bedroom, French-style property, which once belonged to Eddie Murphy's ex-wife. It is set on 1.4 acres in a gated community and boasts a 10,000-square-foot main house which includes a library, private movie theater with stadium seating, wet bar, wine cellar and a pond, according to the Los Angeles Times.

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