Barbadian princess of song Rihanna has listed her decrepit old mansion on a (Beverly) hill. The 10,000 square-foot house, which she purchased for $6.9 million in 2009, has apparently been nothing but trouble for Lady Ri since the beginning.

Who on earth would play Princess Di in a movie? There is no one more needlessly deified on either side of the pond and no actress is going to be able to survive the scrutiny of such a performance. Well, Jessica Chastain is brave enough to try. The British press are going to have a field day with this!

You may have heard Republicans call President Obama a socialist a few times. But now Michele Bachmann is using the loaded term to attack Mitt Romney, dropping a veiled shot at an unnamed "frugal socialist" who could challenge Obama in 2012.

Frank Bruni is nice clean-cut fella and a talented writer who was a good restaurant critic but good lord in heaven is he a dispensable columnist. It's as if moving onto the opinion pages has magically rendered this once-capable journalist into a trite hack!

A fourth woman has accused Herman Cain of sexually harassing her, and she'll be holding a press conference at 1:30 pm with Gloria Allred. Will this be the piece of pepperoni that finally tears through Herman Cain's indestructible crust?

Every day, celebrities across the world are followed and photographed by the omnipresent paparazzi, often to entertaining results. Here are some of our favorite shots from the past week.

It's been a long, strange road for Ken Mehlman, the George W. Bush campaign strategist and former chairman of the Republican National Committee. Last year he came out of the closet. Now he's been named to the Out 100 and it seems all his work against gay Americans has been forgiven. Oh, we won't forget a gay traitor so quickly.

According to a copy of her forthcoming book, obtained by the Associated Press, Gabrielle Giffords intends to take up her seat again in the House of Representatives: "I will get stronger. I will return."

Before she brings a pack of rabid girls and gays to Times Square for New Year's Eve, Lady Gaga is going to force us all to sit through her Thanksgiving special, A Very Gaga Thanksgiving, on ABC. She'll performs her songs, do an interview with Katie Couric and talk about Christmas. Wait, is this a Christmas special in disguise? That holiday starts earlier every damn year.

Never underestimate the power of hype. When Groupon's clattering clown car went public today, its stock soared 40% to $28 a share from its IPO price of $20. Groupon CEO Andrew Mason—that Andrew Mason—is now worth $1.3 billion. Happy Friday!

Jennifer Lopez has signed a deal with Walden Media, the goody-two-shoes "family" film production company, to produce a live-action version of Where in the World Is Carmen Sandiego.

Kristen Stewart's irrepressible sexiness imperils a movie franchise for kids. George Clooney gave Stacy Keibler crabs. Kris Jenner on Kim keeping her engagement ring: "I hate Indian givers." Dina Lohan blabs about LiLo's Playboy contract. TGIFriday gossip.

Is there anything more satisfying than watching the ongoing implosion of Jon Corzine, a filthy rich privileged putz who thought his wealth entitled him to run the state of New Jersey, but who got tossed out of office by a fat man and went on to drive a derivatives firm into bankruptcy and criminal investigations? No, there is nothing more satisfying. Nothing.

Cory Smoot, aka Flattus Maximus, the lead guitarist for Disneyfied Satanic metal outfit GWAR, was found dead on the band's tour bus on Thursday after playing a date in Minneapolis. There's no word yet on how it happened. [AP]

Leave no fingerprints. That's the way corporate security is supposed to work. But John Theriault left big, messy ones when his Apple security agents penetrated the home of an innocent San Francisco man. Now Theriault is out of a job, and his creepy security department will probably be a lot more careful—about getting caught.

New York City Mayor Michael Bloomberg addressed an international economic forum at Columbia University on Thursday, during which he sounded off against certain, nameless, intellectually substandard presidential candidates who claim not to believe in things like the theory of evolution and global warming.

Facebook does not forgive, and Facebook does not forget, at least not when it comes to Paul Ceglia, the upstate New York entrepreneur who tried to win control of the social network in court. Having run off to Ireland in the wake of evidence he may have fabricated evidence, Ceglia has been told to return. You can run, but you cannot hide, from the great social network in the sky.

Today we were saddened by the news that Hollywood's days are numbered. Ryan Seacrest, a renowned lover of vaginas the world over, is in talks to produce a film. The entertainment industry is simply not built for such a horror show and Hollywood will burn straight to the ground. But what will Hollywood's last flick be about? And who will star in it? One commenter has seen a spec script.

For the past week, American's finest news institutions—those self-identified defenders of journalistic propriety against the teeming online hordes—have been tripping over themselves to publish vague, contextless, detail-free, anonymous accusations about the sex life of presidential candidate. Hey, that's our job!

Silicon Valley warps the mind. In the real world, your health, family, and friends are most important. In the Valley, they're what you trade for speed, buzz, and valuation, as illustrated in a heartbreaking scene from the Facebook-Google war.