Lady Gaga's "childish diva" behavior doesn't fly with one of the industry's most notorious hot heads, Vogue's editor-in-chief Anna Wintour, and RadarOnline.com has all the details.

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According to Maureen Callahan, author of the much-anticipated biography Poker Face: The Rise and Rise of Lady Gaga, the eight-time VMA winner performed in May at Wintour's Metropolitan Museum Costume Institute Gala, and the two did not get along.

There's about to be a lot revealed about Lady Gaga in a new blockbuster biography about the Bad Romance singer that hits shelves on Tuesday, September 14 - and only RadarOnline.com has exclusive excerpts before the book's release.

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Among the many interesting things about Gaga in Poker Face: The Rise and Rise of Lady Gaga is why she canceled her headlining tour with Kanye West last summer.

"He's a grade-A disaster, a mess. If his name is on it, no one will touch it," a source inside West's camp told author Maureen Callahan.

Michael Jordan’s son Marcus hit the Las Vegas casinos and nightclubs last Friday to the tune of $50,000 – the problem is, he’s underage at only 19-years-old.

Marcus took to his Twitter account to brag about what a high-roller he was while partying at Haze, a nightclub in the Aria Hotel and Casino City Center and RadarOnline.com has the Tweet.

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“Last night was stupid…35k at Haze…Totals 50k something the whole day…Damn!!” Marcus tweeted. The damaging Twitter message was removed shortly after it was posted.

MGM Resorts International owns the Aria franchise and when contacted by RadarOnline.com spokesperson Yvette Monet said, “We do not comment on rumor or speculation about our guests.”

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Michael has been known as an avid gambler and in 1993 he admitted to having to cover $57,000 in gambling losses. He later appeared on 60 Minutes in 2005 where he again admitted that he had made reckless decisions.

"Yeah, I've gotten myself into situations where I would not walk away and I've pushed the envelope. Is that compulsive? Yeah, it depends on how you look at it,” Michael said. “If you're willing to jeopardize your livelihood and your family, then yeah.”

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In the event that Marcus was gambling while underage, the Nevada Gaming Control Board’s Kathy Faust told RadarOnline.com:

“We do not investigate underage gambling. It is required by law that the casino or institution in question turn in a report to the board if they suspect an unlawful act.”

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Michael’s reps did not return a request for comment when contacted by RadarOnline.com.

A spokesperson at The Las Vegas Alcohol and Beverage Control Board told RadarOnline.com that underage drinking matters are “not their issue” but that they are instead “controlled by the police department.”

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Marcus and his older brother Jeffrey, 21, were in Las Vegas with their dad who was holding the Michael Jordan Fantasy Camp at The Mirage.

The father of the woman accusing Fantasia of stealing her husband says he will support a decision to sue the singer, RadarOnline.com is exclusively reporting.

“I’ve told her that she’s a mature adult, she’s very strong woman and she’s very independent and she’ll make these decisions on her own,” Larry Sloan, the dad of Paula Cook, told RadarOnline.com.

“I told her I’d be there for her for moral support.”

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It has emerged that Paula has threatened to sue Fantasia for alienation of affection, the singer's lawyer Gena Morris told People.

Cook accuses Fantasia and her ex-husband, Antwaun Cook, of having a year-long affair during which they sometimes "recorded their illicit sexual activity".

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The pair was photographed together, less than 24 hours after the former Idol alum was released from hospital in Charlotte, North Carolina, after a failed suicide attempt.

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However, Fantasia insists she's not responsible for breaking up the marriage of the North Carolina couple, although she has not denied an affair or the existence of an alleged sex tape.

"Fantasia is certain that she is not responsible for the deterioration of the Cook's marriage," manager Brian Dickens has said.

Sloan told RadarOnline.com he was not aware of issues in his daughter’s marriage until the news had broke.

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But he said it was clear from the past week that Antwaun has broken two women’s hearts.

“I would say the family was surprised,” he said, “we were surprised by this, yes, and I think his family was also probably surprised by it too.”

When asked if there was a chance of reconciliation between his daughter and her philandering husband, Sloan said: ”I would just say that right now it appears that they may not in the near future get things reconciled.”

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He added Antwaun had moved in and out of the couple’s home multiple times in recent months.

“One of the hard things (about this) is the attention it’s brought,” Sloan said. “But like I said, my daughter is strong and she’ll be able to handle it whichever direction she goes.”

Real Housewives of New Jersey star Teresa Giudice‘s possessions will be hitting the auction block later this month if her lawyer’s appeal fails to stop it. RadarOnline.com has obtained papers filed by an appraiser who recently sized-up Teresa’s over-the-top abode.

Read The Documents Here

From a grand piano, sconces, and a Kawasaki ATV, the family’s belongings were tallied up and given estimated values.

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Teresa and her husband Giuseppe filed for bankruptcy in October and according to bankruptcy records, they have nearly $11 million in debt. According to papers filed with the United States Bankruptcy Court District of New Jersey, Alan Atkins of A. Atkins Appraisal Corporation, predicted the forced sale value of the items to total only $51,160.

While most everything including tires and the children’s toys were given a sticker price, other things were found worthless- or was that priceless?

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No amount was given for a framed family portrait in the back foyer or the Giudices’ framed wedding portrait in the upstairs foyer and hall.

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However, their wedding bands did get appraised: Teresa’s 14 kt. yellow gold band was set at $150 and her husband’s 14 kt. white gold wedding band (which the appraiser noted could not be found for physical inspection) was set at $240.

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The auction is slated to occur on August 22 at noon EST.

Steven Slater- the JetBlue flight attendant who was arrested on Monday after cursing at passengers and sliding down the emergency exit slide- had taken a five-year break from the airline industry before joining JetBlue, RadarOnline.com has learned.

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“Back flying after five years off the job and having a ball,” he wrote cheerfully on one of his Myspace page. “If I am on the ground, I am probably in my humble home in the 'burbs doing something domestic and trite like vacuuming. Or dining, as I just love to dine. Which leads to the gym, to offset the dining. Big fan of sand and sun, I am often found on the beach or in a park, anywhere I can catch some exercise and a few rays. My airline affiliation allows me amazing travel privileges, and I love to max it out with trips around the world, sometimes on a moment's notice! Let's go!”

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Prior to his JetBlue job which he began in January 2008, Slater was a flight attendant for Delta from 1997 to 2002.  He has also worked for TWA. According to a resume he posted online, Slater spent his hiatus from flying by working in the retail industry. For two years from May 2003 to 2005, he was a Burberry Accessories Shop Manager at Bloomingdale’s/Burberry. He does not account for the other years he spent away from the airline industry.

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Slater seemed to enjoy his time back in the skies despite the not always exotic destinations he was sent to:

“Well howdy friends and loved ones! Thanks for stopping by my little piece 'o the web! Chances are I am flying 35, 000 feet somewhere over the rainbow on my way to some semi-fabulous JetBlue Airways destination! Truly, some are better than others. But I am enjoying being back in the skies and seeing them all.”

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Slater was arrested after the incident and a judge set his bail at $2,500 on Tuesday.  He faces up to seven years behind bars after was he was charged with reckless endangerment and other offenses. He is due back in court on September 7.

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Just days after Michaele Salahi's now infamous run-in with Whoopi Goldberg on The View, the White House crasher appeared on the premiere of Real Housewives of D.C.Thursday night -- but failed to appear at the official Bravo viewing party.

Instead, RadarOnline.com has learned Michaele and her husband Tareq chose to celebrate the new reality-TV show by hosting their own party at EFN Lounge, an event that sold tickets online ranging from $25 to $500.

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Invitations for the party were distributed by a company called DC's Most Fabulous with the word 'premiere' misspelled on the flyer, and promises of cast from Orange County, Atlanta, New York and New Jersey to show up at the party.

"A staple on Washington, DC’s charity circuit for years, the Salahis graciously lend their name and celebrity to this event benefitting these phenomenal organizations," Howard Cromwell, Jr. stated on the event's press release. Proceeds from the event were said to be donated to the Dab the AIDS Bear Project and Honor & Remember, Inc.

Michaele Salahi and Whoopi Goldberg could be set for another heated battle -- this time in the courtroom. The reality television star, who debuted Thursday on The Real Housewives of D.C., is so upset at being branded a ‘gatecrasher’ on-air during Wednesday’s episode of The View, she is considering suing for defamation.

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The Salahis’ lawyer Lisa Bloom told RadarOnline.com that the celebrity-seeking couple Michaele and Tareq are considering their legal options.

Misery loves company: shortly after Snooki was taken to the police station following her arrest on Friday, other members of the Jersey Shore cast arrived in support of her.

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“On my way to free Snooki!” J-WOWW wrote on her Twitter page. She arrived at the station accompanied by Vinny and new castmate Deena.

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The trio looked somber as they walked into the police department.