Woman of the Hourglass  —  Mad Men's Christina Hendricks finds talk of her body boring.  A minority opinion, to be sure.  Particularly this season.  —  Corsets, lace, cleavage, and silk.  Who better than Hendricks to model the new lingerie-as-outerwear trend?

Chynna Phillips Enters Rehab for Anxiety  —  Chynna Phillips of the pop group Wilson Phillips checked herself into rehab for anxiety over the weekend, her manager, Lizzie Grubman, tells PEOPLE exclusively.  —  Phillips is the half-sister of Mackenzie Phillips, whose claims last fall …

EXCLUSIVE: Porn Star Who Claims Tiger Got Her Pregnant Is Compulsive Liar Says Her Step-Mom  —  Deborah Siwik, the step-mother of porn star Joslyn James — the woman who claims that she was impregnated by Tiger Woods — has exclusively told RadarOnline.com that James is a “compulsive liar.”

Charlie Sheen's Wife in Rehab  —  In what could be a blow to the prosecution's case against Charlie Sheen, Brooke Mueller is now in rehab for substance abuse ... TMZ has confirmed.  —  The criminal case in Aspen comes down to Charlie's word against Brooke's — she claims he put a knife to her throat and threatened her life.

Nicole Richie & Joel Madden Getting Married!  —  They've been together for more than three years and have two children.  Now, Nicole Richie and Joel Madden are planning to make it official.  —  Richie said Monday night during a taping of the Late Show with David Letterman that the couple …

Heidi Montag: Future Porn Star?  —  After he convinced her get some bigger tits and a new face, I knew it was only a matter of time before Spencer McDouche would be pimping out his wife Heidi Montag for bachelor parties and holidays.  Here she is dressed as a pornstar in a suite in Las Vegas …

Mariska Hargitay Goes Two-Pieces  —  “Law & Order: SVU” star Mariska Hargitay showed off her special swimsuit units while in St. Barth's this weekend.  —  Being Jayne Mansfield's daughter comes with a lot of perks.  —  More Mariska  — Mariska Returns Post-Hospitalization

Jay-Z: “We Are the World” Shouldn't Have Been Remade  —  Jay-Z wasn't a big fan of the “We Are the World” remake, which debuted at the Olympic opening ceremonies Friday to benefit Haiti earthquake relief.  —  “I know everybody is gonna take this wrong: ‘We Are the World,’ I love it, and I understand the point and think it's great.

Did Hayden Panettiere get a boob job?  —  Hayden Panettiere is looking much more stacked lately, and this week's National Enquirer claims that she's had some surgical intervention.  Looking at the difference, I don't think she's just wearing a pushup bra, but it's possible she's using external bra inserts.

Shia and Carey Take Their Valentine's Romance on a Boat  —  Shia LaBeouf and Carey Mulligan decided to do something special to mark their first Valentine's Day as a couple, renting a boat called the Lady Hornblower for a sunset cruise near LA. An attendant was even on hand to serve the couple wine and snacks …

Leonardo DiCaprio and Bar Refaeli Engaged?  —  Actor Leonardo Dicaprio, 35 and supermodel girlfriend Bar Refaeli, 24, are rumored to have gotten engaged on Valentine's Day.  Hold off on the engagement gifts, a source close to Leo tells “Extra” that the story is made up.

Megan Fox: I Don't Look “Classy” in Underwear  —  Megan Fox wishes she looked a little more sophisticated in her skivvies.  —  “There are some women you could put in underwear and photograph them, and it looks really classy and it doesn't necessarily provoke a pinup image,” the actress, 23, tells the March issue of W magazine.

EXCLUSIVE: Michael Lohan Moving To L.A. With Kate Major  —  Michael Lohan and his new girlfriend Kate Major are moving to Los Angeles and hope to turn their cross-country move by bus into a reality TV show, he told RadarOnline.com exclusively.  —  Lohan is hoping to enlist several celebrities …

John Mayer Offered Porn Gig  —  No, it's not an invitation for his “white supremacist” shlong to star in an XXX film, but Vivid Entertainment founder/co-chair Steven Hirsch has contacted the mouthy singer offering him a writing (and possible directing) gig with the adult film company.  Steven wrote to John:

EXCLUSIVE: Kellan Lutz Nervous About What “Mother Thinks” of Underwear Ads  —  Kellan Lutz tells UsMagazine.com he was completely at ease stripping down to his skivvies to pose for Calvin Klein ads.  —  “You know I've done other fittings where you have to wear underwear and you're kind …