Bill O'Reilly went on David Letterman as part of his quest to get more attention than Rush Limbaugh and his Fox News Channel sibling rival Glenn Beck. Fat chance:

• The Obamas headed over to London today on their first trip overseas since Barack took office and the big topic of discussion is Michelle's wardrobe, of course: She was wearing Thakoon as she boarded the plane, but she emerged in a Jason Wu dress when she got off. But tomorrow she meets the Queen, so expect things to really get crazy. [NYM, SW, Style.com]
• Kate Moss will cut the ribbon at the Topshop opening on Thursday, naturally. [WWD]
• Tips on surviving the big opening from your pals across the pond. [Guardian]
• Richard Chai may be the new creative director at Bill Blass. [FWD]
• Agent Provocateur just launched its new swimwear collection. [Pipeline]

Carly Fiorina, still draped in the silky folds of the $45 million golden parachute with which she left Hewlett-Packard in 2005, is planning a Senate run. No wonder she's been talking about "executive excess" lately.

Bad news today for everyone connected to Bernie Madoff. An appeals court judge denied a motion by Peter Madoff, Bernie's brother, to overturn a freeze on his assets. And in a separate ruling, a Connecticut judge temporarily froze the assets of Bernie's two sons, as well as execs at several Madoff feeder funds, including Walter Noel and several of his flunkies at Fairfield Greenwich Group. Yes, for Andrés Piedrahita, not only is the party long over, but the club was switched on the lights and blocked off the exits, too. [Bloomberg, Reuters]

It's a day of high intrigue at Facebook headquarters, with CFO Gideon Yu leaving abruptly. So why was former COO Owen Van Natta, who left last year, spotted walking out of a Facebook office?

Chuck Scarborough has yet to be given a pink slip by WNBC, as per the rumors making the rounds yesterday, but the same can't be said for sports anchor Len Berman. The 20-year veteran of Ch. 4 will stick around for the next 30 to 60 days before bidding goodbye to his $1-million-a-year salary. Whether his "Spanning the World" bit lives on without him is unclear, although on a positive note, he'll no longer have to commute home to Long Island at 11:30pm every night. [Newsday]

Dispatches from the land of Twitteronia: Penelope Trunk and Brooke Hammerling wrestled with their relationships, while Jason Pontin and Chris Lehmann wrestled with the facts. These are the fights Twitter always wins:

Did you know the founder of Wikipedia had a search engine? By the numbers, it's unlikely, since Wikia Search, Jimmy Wales's would-be Google killer, only attracted 10,000 users a month. He's now closing it.

Miss Universe took a morale-boosting trip last week, to Guantanamo Bay. "It was a loooot of fun!" There were dogs and beaches. Also detainees.

[An unemployed woman participates in the Phone Toss at the 'Unemployment Olympics' in New York City today. A laid-off computer programmer organized the event to lift the spirits of the jobless; image via Getty]

The New York Times' management is full of good liberals, and they really don't like to fire writers. But cutting salaries and folding sections isn't as easy as it looks. Or as effective.

Cool Web kids are fighting the plague of long Internet addresses "URL shrinkers" — quirky names like TinyURL and Is.gd. One of them, Bit.ly, just raised $2 million. Great news for Libyan strongman Muammar Qaddafi!

We're hearing a rumor from a fairly good source that Harris Publications' KING—"The Illest Men's Magazine Ever," as you know—may be folding. If you'd like to confirm or deny, email us.

Google wants to be your Web browser, not just your search engine, which is why it unveiled Chrome last fall, a rival to Firefox. Now we hear Google's ready to hit Firefox in the pocketbook.

Bill O'Reilly's in the midst of his big media tour to remind the world he's the number one hollering cable show guy in the history of television! But is he?

• The Mets put on a "showcase" today of the "award-winning roster of dining options" available at Citi Field, one which "scintillated the senses" and "is sure to be one of the biggest hits of the year." Had enough yet? [Mets]
• Rumor has it that David Graziano and David Cabo, two of the dudes behind Pink Elephant and Bagatelle, are taking over the old R&L/Florent space. [GS]
• What's the appropriate tip on a drink, $1 or 20? Frank Bruni explains. [NYT]
• If you walk by Monkey Bar tonight, you may find it open for business. [Eater]
• Terrance Brennan's Artisanal is hosting a grilled cheese contest. [TFB]
• A roundup of some Easter and Passover dining options. [Zagat]
• '21' is extending its Restaurant Week prix fixe through Labor Day. [Eater]
• What does every product claim it contains antioxidants these days? Because gullible people buy them based solely on the label, of course. [Atlantic]
• A Brooklyn fast food joint has renamed itself "Obama Fried Chicken." [TSG]

[Jimmy Fallon interviews Will Forte for a segment of his not-so-funny show; image via WENN]

One by one, Facebook CEO Mark Zuckerberg has driven away his cofounders and close confidants. The latest to go: chief financial officer Gideon Yu.

Earlier we heard a rumor that struggling Conde Nast was planning to lay off its full-time receptionists. And we've received more corroboration that it's (kinda?) true! What sort of bootleg operation is this?

Politico.com has concluded a groundbreaking investigation into the cars owned President Obama's cabinet members and top aides. And what did they find? A very sorry state of affairs, that's what. Treasury Secretary Tim Geithner is the proud owner of a 2008 entry-level Acura TSX, and he previously owned a 1999 Honda Accord, none of which is entirely surprising considering he's worked government jobs his whole life, has an atrociously designed home, and has lousy taste in ties, too. Larry Summers, however, will have a harder time excusing his 1995 Mazda Protégé (or his previous car, a 1996 Ford Taurus GL), since he worked for David Shaw's hedge fund for long enough to invest in a 3-series BMW (at least one that was manufactured at a plant in the U.S.) Naturally, the one person noticeably absent from Politico's list is the one that matters most: Steve Rattner, the man appointed by President Obama to redeem the American auto industry. But it's not all that complicated to determine at least one of the cars in Rattner's fleet. The couple's 2006 black Mercedes-Benz 350 (New York license plate #CSL1498!) was entered into the public record when his wife, Maureen White, was arrested for drunk driving last October.