Justin Bieber Talk About My Parties I'll Sue You for $5 Mil 
 
 Justin Bieber -- Talk About My Parties ... I'll Sue You For $5 Mil 
 
 EXCLUSIVE 
 
 Here's the good news ...wants to invite you to one of his house parties. The bad news ... if you talk about it, he's gonna sue your ass for $5 million.TMZ has obtained a copy of a document EVERYONE must sign before entering Casa De Bieb in Calabasas, CA. The doc -- a Liability Waiver and Release -- warns that anyone who blabs about any of the goings on inside the mansion will get nailed, and that includes the "physical health, or the philosophical, spiritual or other views or characteristics" of Bieber or the guests.The document makes it clear ... anyone who violates the terms of the waiver will automatically be on the hook for $5 million in damages.But wait ... there's more. If you dare tweet about the party -- $5 mil. If you blog -- $5 mil. If you Instagram -- $5 mil.And God knows what goes on inside, but the form warns there might be activities which are "potentially hazardous and you should not participate unless you are medically able and properly trained."And there's more ... The risks include "minor injuries to catastrophic injuries, including death."Truth be told ... other big celebs also make people sign these waivers, but it's pretty hilarious. ||||| Singer Justin Bieber greets fans at the 2012 Wango Tango concert at the Home Depot Center in Carson, California May 12, 2012. 
 
 (Reuters) - Canadian pop star Justin Bieber ran headlong into trouble on a European promotional tour on Thursday, knocking himself out backstage in Paris and dealing with a crushing crowd in Norway that left some fans injured one day earlier. 
 
 Thursday's incident occurred after the singer fell into a glass wall during an intimate concert in Paris. Bieber told celebrity news website TMZ.com he felt lightheaded but was able to perform his last song before going backstage and passing out for 15 seconds. 
 
 TMZ posted an audio clip of its conversation with the pop sensation in which he said doctors told him he suffered a concussion and ordered him to relax. The singer quickly posted on Twitter that he was doing well, joking about the incident and saying "gotta laugh at yourself sometimes." 
 
 The concussion comes one day after Bieber, on a brief tour of major European cities to promote upcoming album "Believe," was met with a crush of fans before a free concert in Oslo leading to reports of dozens of young girls being injured. 
 
 Bieber's record label, Universal Music, said in a statement to celebrity site E! Online on Thursday that it "regrets strongly that some of those who were Justin concert had a bad experience." 
 
 A label executive said "fortunately no one was seriously injured," and added that Bieber wanted to return to Norway and perform a future concert there. 
 
 Calls and e-mails to Bieber's representatives were not immediately returned. 
 
 Bieber performed a free, six-song concert at the Oslo Opera House on Wednesday that is planned to be featured on his upcoming one-hour NBC television special to be aired next month. 
 
 The 18-year-old singer was forced to tweet a safety message ahead of the show after police were unable to control the crowds of fans trying to catch a glimpse of the star. 
 
 "for the show to happen u must all listen to the police. we are all concerned for your safety and i want what is best for u. please listen," Bieber posted to his 22 million Twitter followers on Wednesday. 
 
 TMZ said 49 young girls were injured and 14 taken to hospitals, and police came close to declaring a state of emergency in the capital. Those reports could not be immediately confirmed. 
 
 This is not the first time Bieber fever has caused crowd control and safety issues. In November 2009, fans stampeded a shopping mall in Long Island, New York ahead of an appearance by the pop star, forcing organizers to cancel the event. 
 
 Bieber's manager was charged with reckless endangerment and criminal nuisance, but the charges were later dropped. 
 
 (Reporting By Piya Sinha-Roy; Editing by Bob Tourtellotte)
– If you aspire to attend a party at Justin Bieber's house, first you'll have to score an invitation ... and then you'll have to sign a Liability Waiver and Release. TMZ got a copy of the fairly insane document, which says that if you tweet, blog, text message, or otherwise talk about the party in any way, shape, or form, you owe the Biebs $5 million. Not only can you not discuss the party; you're also not allowed to discuss the other guests' health or philosophical and/or spiritual views. Yep, it specifically says that. By signing the form, you also acknowledge that some of the party activities are "potentially hazardous and you should not participate unless you are medically able and properly trained," because you risk "minor injuries to catastrophic injuries, including death." (Oh, and you agree not to sue Bieber, should you be catastrophically injured during a crazy game of beer pong.) TMZ notes that other stars make partygoers sign similar waivers, but notes that Bieber's is nonetheless "hilarious." (Click to find out which fellow singer thinks Bieber is an "a--hole.")