There may be no new Kennedy Idol after all! Joseph Kennedy II, RFK's son, said he won't run for his late Uncle Ted's Senate seat, which means Massachusetts will not have a Kennedy lawmaker for the first time since 1946.

• Confirming the rumors from a few weeks back, Fox Business says it will begin simulcasting Don Imus' radio show beginning next month. [LAT]
• The total number of advertisers that have decided to yank their ads from Glenn Beck's Fox News show, according to ColorofChange: 57. [NYDN]
• More on the transition at ABC News: Charles Gibson's decision to retire took ABC execs by surprise; an effort to get him to change his mind didn't work; and it's still unclear who will replace Diane Sawyer at GMA. [NYT]
• Is YouTube going to be the new Netflix? The site is reportedly in talks with Hollywood studios about renting new release movies online. [WSJ]
• Two new women have been added to the cast of SNL. [AP]
• Erin Andrews returns to ESPN tonight for the first time since that whole hote room videotaping incident went down a few weeks back. [NYDN]
• OK!'s circulation is dropping. Naturally, things will get much better just as soon as Kim Kardashian takes up her new post at the magazine. [AdAge]

• It's been a couple of thousand years since a man named Jesus "sparked a frenzy" in Jerusalem. But it happened again yesterday when Jesus (Luz, that is) accompanied Madonna to the Western Wall. [DM]
• Yesterday it was reported that Chris Brown had told Larry King that he didn't really remember beating up Rihanna. Now he says he does remember using her a human punching bag; it's just that the clip used to promote the show was taken out of context. [People]
• Filming has started on the new season of the Real Housewives of New York City. And the pressure is on, apparently. There are two "backup" housewives waiting in the wings in case the women don't perform and "the story lines are not interesting enough." [P6]
• Demi Moore would like to make it clear she's never had plastic surgery. It's natural that she looks like that at the age of 64. So back off. [Telegraph]

Maria Sharapova and James Blake challenge Roger Federer. Paula opens up on Idol. Kate Moss shows some skin. And Phil Spector needs to learn a lesson. Those stories — and more! — are in your Tuesday morning Gossip Roundup!

• DJ AM's overdose on Friday appears to have been accidental, according to law enforcement sources who spoke with TMZ. It seems the celeb DJ, who claimed he'd been sober for 11 years, only started using drugs again after he was prescribed anti-anxiety and pain meds following his plane crash last year. [TMZ, NYDN]
• Those rumors that Chelsea Clinton plans to marry boyfriend Marc Mezvinsky in Martha's Vineyard this summer are heating up again. A large tent and stage have been set up in the area, although no one's sure if it's for the Clinton wedding. [P6]
• Joan Rivers says Libyan leader Moammar Khadafy was thinking about renting her Fifth Avenue apartment for $200K a week, but recently changed his mind. The upshot? Rivers won't have to worry about the dictator "roasting cows in her living room." [P6]

Heidi Montag wants to be impregnated. Bethenny Frankel wants new friends. And Martha's Vineyard wants to see Chelsea Clinton wear white. Good morning! It's Monday's Gossip Roundup!

Chelsea Clinton is not marrying that "Marc Mezvinsky banker guy," according to Cindy Adams, who learns lots of stuff when she "weekends" in the Hamptons with Palin-obsessed Scientologist power couple John Coale and Greta van Susteren.

• New details have emerged about Mischa Barton's involuntary trip to the hospital last week: According to the Post and the Sun, Barton was "so high on coke following a marathon three-day bender" that friends thought she might kill herself, and contacted the police. [NYP, Sun]
• Yet another fashion publicist is in legal trouble, apparently. Tim Mark Garcia, the new head of public relations for Marc Jacobs, is out on bond on "plunder" charges and is now facing extradition back to the Philippines. [P6]
• Not surprisingly, billionaire financier Pete Peterson is said to be "mortified" over how his grandson, PC, has come off on the Bravo show NYC Prep. [P6]
• French president Nicolas Sarkozy was in NYC this weekend. And he showed off his "chiseled" body when he went jogging in Central Park. [NYDN]

July 16 @ 8:49pm: Snapped this picture with my Iphone of Chelsea with Marc [Mezvinsky] and some other guy. They stayed for 15 minutes, decided not to eat and moved on. [Submit your own Gawker Stalker sightings to stalker@gawker.com]

Former John Edwards campaign insider Andrew Young won't STFU. Karl Lagerfeld was told to STFU by Heidi Klum's people. Courtney Love trashed a hotel room. Harry Potter cast members got Swine Flu! Presenting your firework-cinged post July 4th Gossip Roundup!

Is Chelsea Clinton getting married this summer? Rumors that former first daughter plans to tie the knot with longtime boyfriend Marc Mezvinsky in the near future first surfaced in late March, and although the Clinton family has steadfastly denied the reports since then, "well-connected residents" of Martha's Vineyard" now say the wedding is planned for late August at the home of Vernon Jordan, the Democratic power broker and top exec at Lazard. (Previously, it had been reported that the wedding might take place at the Martha's Vineyard home of Ted Danson.) The Clintons still maintain it's not happening, although if you have plans to be on Martha's Vineyard at the end of August—which is when the Obamas are expected to be on the island—you'd be well advised to take precautions and make alternate vacation arrangements as soon as possible. [NYM]

Chelsea Clinton may be getting married this summer to beau Marc Mezvinsky on Martha's Vineyard. Involved in this small tidbit of information: Ted Danson, Touré, the Obama's summer vacay plans, and a "democratic powerbroker."

• Lindsay Lohan is certainly having a good week. Not only did she finally land another acting role—she'll be appearing in The Other Side, along with Woody Harrelson, and Giovanni Ribisi—but she may be getting her own clothing line at JCPenny, too. And the cops are getting closer to figuring out who broke into her house, too, which has got to be good news. [NYDN, People, NYP]
• These are tough times for Jennifer Aniston, clearly: Bette Midler is now providing her with dating advice and says Jen should sign up on JDate and find "a nice Jewish boy" with "a lot of money." [NYDN]
• Rihanna is "convinced" it was Chris Brown who leaked nude photos of her last week as payback for not attending his birthday party. [NYDN]
• Chelsea Clinton has a six-pack! [P6]

Jay McInerney's latest book, How It Ended, was feted at the 21 Club on Wednesday night. On hand for the occasion: McInerney's wife, Anne Hearst, Brooke Shields, Candace Bushnell and Charles Askegaard, Gay and Nan Talese, Morgan Entrekin, Nina Garcia, Pamela Fiori, Bob Colacello, Richard Johnson and Sessa Von Richthofen, Peggy Siegal, Muffie Potter Aston, Bettina Zilkha, Cornelia Guest, Debbie Bancroft, Valesca Guerrand-Hermes, Nina Griscom, Somers White Farkas, Patrick McMullan, Robert Couturier, George Farias, Tatiana and Campion Platt, Kimberly Rockefeller, Pamela Gross, Harry Slatkin, Dana Hammond, Harry Benson, and Deborah Norville. [PMc, VF, P6]

• It wouldn't be fashion's biggest night without a bit of drama thrown in to spice things up. Naomi Campbell, Linda Evangelista, and Christy Turlington are reportedly skipping the Costume Institute gala this evening, possibly because Kate Moss was chosen to co-chair the event; meanwhile, Karl Lagerfeld, Azzedine Alaia, and Domenico Dolce and Stefano Gabbana are all staying home, perhaps because Marc Jacobs has "commandeered the event" by buying two tables and dressing Moss, Madonna, and Kerry Washington. [P6]
• The Chelsea Clinton wedding rumors continue: The Boston Globe reports the former first daughter and Marc Mezvinsky may get hitched at Ted Danson and Mary Steenburgen's home on Martha's Vineyard in August, which is when the Obamas will be in town, too. [BG, NYDN]
• Kelly Killoren Bensimon says picking on her has become "the new recession vocation." Sounds about right. [R&M]

• Is Madonna leaning on her friends to hire boy-toy Jesus Luz so he can remain in the country legally? It's possible! [P6]
• Tyra Banks is expected to take the stand this week at the trial of the man accused of stalking her and threatening her staff. [NYDN, NYP]
• Angelina Jolie and Brad Pitt are sending their attorneys after the couple's former bodyguard to ensure he doesn't write a tell-all about life in the Brangelina home. [NYDN]
• Salma Hayek and Francois-Henri Pinault had a second wedding in Venice this weekend; guests on hand for the occasion included Anna Wintour, Ed Norton, Stella McCartney, Bono, Charlize Theron, Woody Harrelson, Lucy Liu, Penelope Cruz, and Javier Bardem. [NYDN, People]
• Heidi Montag and Spencer Pratt tied the knot this weekend, too, although the event featured fewer A-listers and many more MTV cameras. [People]

• Gwyneth Paltrow's latest goal? To get Mario Batali to lose weight, apparently. She's supposedly already given him a free membership to the gym she's opening with Tracy Anderson, since he's "the only fat friend she has, and wants him to change." [P6]
• Poor Jennifer Aniston has been "holed up" in her room at the Greenwich Hotel since arriving in New York a few weeks ago, supposedly because she's terrified of "bumping into Angie" on the street. [L&S]
• Michael Phelps and Miss California, Carrie Prejean. are apparently dating, or at least that's what Prejean's grandmother is saying. [NYDN]
• In an interview with Ellen DeGeneres, Lindsay Lohan says she's "still in love" with Sam Ronson, and that their breakup "came out of nowhere." She's also lost a lot of weight, which you've probably already noticed. [OK!, People, NYDN]
• Tim Gunn says he hasn't been on a date in 26 years, but that he's okay with it because he's "very happy being alone." [NYDN]

• Say it isn't so! Although she's introducing her own spray-tan line, Sevin Nyne, Lindsay Lohan has been spotted using the services of a mobile spray-tan company called Fake Bake "on the sly." [NYDN]
• Related: LiLo would like to reiterate that she and Sam Ronson have not broken up. For now. [E!]
• The indignity! Jay-Z had to wait 20 minutes for a table at Babbo. [P6]
• Chelsea Clinton's rep says the former first daughter is not getting married after all. Too bad! [Us]
• Paris Hilton's little brother Barron says he's "giving up the party life" to pursue a career as an "international singer-songwriter." A family just chock full of talent, clearly. [P6]

New beginnings can be heartbreaking: John Mayer's new breakup song sounds ridiculous and transparent, but Paris Hilton's brother's new life plan is even worse. Way worse.

The always reliable National Enquirer is reporting that Chelsea Clinton plans to tie the knot with boyfriend Marc Mezvinsky "in a lavish $1 million dream wedding" this summer. Of course, she hasn't even announced she's engaged yet, so you may want to take this news with a grain of salt. But you'll be happy to hear that the timing is "perfect" now that Chelsea's mom is "settling into her position as secretary of state," and Marc's father, former Iowa congressman Ed Mezvinsky, "has been released from a halfway house after serving time for investment fraud." Sounds ideal, actually. [NE]