Hot Mamas

The same day she revealed she's pregnant with her first child, Shakira was spotted out wearing a loose fitting black top with her hunky Spanish futbol player boyfriend Gerard Piqué in Barcelona on Wednesday.

While her baby news caused the 35-year-old Colombian pop star to cancel her performance in this weekend's iHeartRadio Music festival, Shakira is all set to replace Christina Aguilera as a coach on "The Voice" next spring.

Brazilian bombshell Alessandra Ambrosio proved she's back in supermodel shape by showing of her flat stomach in L.A. on Monday ... four months after giving birth to her second child on May 7th.

The 31-year-old Victoria's Secret Angel has a lot in common with 32-year-old new mom Jessica Simpson ... as Alessandra had her baby just six days after Jess, who gave birth on May 1st.

Britney Spears had to endure the brutal Southern California heatwave yesterday as the singer-turned-judge taped several scenes for "X-Factor" in Malibu.

We're told Brit was on location in the Bu for two days braving the 100-degree heat that has been beating down on SoCal lately. She taped one-on-one segments with her chosen group of contestants ... where she decided who to keep and who to send home.

She may still be under an A-list conservatorship, but Britney Spears is definitely in charge of at least one thing ... making hysterical facial expressions on "The X Factor."

On last night's big premiere, the 30-year-old lip synching wonder's contorted eye, mouth and weave gestures said more about how she really felt about the contestants' performances than any of her actual critiques.

Although Britney's comments were surprisingly lucid, it was her awkward grimaces that stole the show.

The 27-year-old mother of one is very, very good for the environment.

Jessica Simpson says she's lost more than 40 POUNDS since giving birth to her baby 4 months ago.

Jessica revealed the weight loss number on Katie Couric's talk show today, claiming her weight loss surpassed the 40-pound mark ... but she wouldn't give an exact amount, saying, "It's not about the numbers."

Jessica also unveiled her new Weight Watchers commercial, shot two weeks ago. It's pretty funny because the commercial only focuses on Jessica's face. There is NO full body shot, which means WW probably wasn't too pleased with Jessica's weight loss numbers.

Jessica said, "I didn't want the big body reveal moment ... It wasn't me."

Sure.

Jessica Simpson ditched the frumpy clothing and lowered the giant handbag and let the world have a look at her new body as she went to lunch today with hubby Eric Johnson in New York City.

In her recent public outings, Jess has hid her bod under multiple layers of clothing and held her mammoth bag up close ... so no one could get a clean look before her big reveal today on Katie Couric's new show.

Looks like another Weight Watchers success story.

Jessica Simpson isn't ready to fully show off her new and possibly slimmer body ... going out in only non-revealing clothing and clutching a big bag close to her body.

TMZ posted pics of Jess earlier this week ... wearing multiple layers of clothing and holding a giant brown bag. Just this morning at LAX, Jess jetted out of town sporting a similar look, this time with a giant black bag.

Of course, Jess is no fool -- she's scheduled to appear on Katie Couric's new show this week to debut her slender, post-baby body ... so she's in no hurry to ruin that moment.

Clever girl.

Liberty Ross, still the wife of philandering director Rupert Sanders, flashed her toned gams at an Alexander Wang event for Fashion Week last night in New York.

The event featured such guests as Vogue Paris editor-in-chief Carine Roitfeld, Harper's Bazaar editor-in-chief Glenda Bailey, and Vogue senior editor Meredith Melling Burke.

Ross has been seen out several times since it became known her husband had an affair with "Twilight" star Kristen Stewart, whom he directed in the film, "Snow White and the Huntsman."

Jessica Simpson proved getting back to her pre-baby weight is a losing battle ... by showing off her slimmer figure after another workout in L.A. on Tuesday.

Jess has griped about how tough it's been to shed the poundage ... claiming her boobs are so tremendously huge, she can't go jogging.

Still, it's obvious the 32-year-old mom has made some progress in the four months since she gave birth to daughter Maxwell.

Sofia Vergara ate a banana today.

FYI -- she's not really pregnant. The photo was shot this morning on the set of "Modern Family" in L.A. and Sofia's "pregnant" on the show.

Heidi Klum knows ... you can't mix business with pleasure ... and that's probably why she just swapped out the bodyguard she's allegedly fornicating with for a couple of new guys.

Klum arrived to the ABC studios in New York City yesterday -- looking DAMN GOOD -- and accompanied by two brand new security monsters.

As we previously reported, Martin Kristen was guarding Heidi's body as recently as last week ... right before Seal told TMZ they were banging each other.

Jessica Simpson has two huge obstacles to overcome on her quest for her old bod ... her giant boobs ... 'cause Jessica says they've gotten so big, she can't go running.

Simpson is finally discussing her tremendous weight gain to People.com, claiming she packed on the pounds during her pregnancy because "It was the first time I was ever pregnant, and I wanted to enjoy it."

Jess says she loaded up on mac and cheese and other crap that's delicious but terrible for you ... because "I didn't realize [the weight] didn't all come off with the baby."

Of course she didn't.

Now, Simpson is working out with a fancy Hollywood trainer ... but refuses to go running because she doesn't want to end up with two self-induced black eyes ...saying, "My boobs are way too big to run at this point."

Despite all the fatness, Simpson is committed to revealing her new, skinnier, Weight-Watchers assisted body on September 10 ... on Katie Couric's new show. Can't wait.

Heidi Klum was seen at the crack of dawn this morning at LAX catching a flight out of town ... and with all the attention surrounding her new bodyguard beau ... he was nowhere to be found.

TMZ posted a video over the weekend of Seal calling out Heidi for "fornicating with the help" while they were still married. A rep fo the singer backed off those remarks, saying, "he was not implying his wife was cheating while they were together."

Our sources say Heidi and the bodyguard have gotten "very close" since her split with Seal, but their relationship remains "undefined."

Heidi landed in JFK this afternoon ... looking refreshed.

Rosie O'Donnell is bouncier than Kate Upton ... hitting the streets two weeks after suffering a heart attack.

The 50-year-old spent Friday wandering around New York with her kids and new wife Michelle.

You'll recall ... on August 20th Rosie blogged that she went into cardiac arrest the previous week and didn't even know it until she went to a cardiologist days later.

Son of Snooki was officially unleashed on Planet Earth today ... and TMZ has the very first pics of lil' Lorenzo LaValle and his mommy being carted out of the a New Jersey hospital.

You can't see much of Lorenzo's face ... only the top of his head ... which appears prime for gobs of gel and grease.

Mama Snooks was clutching her little boy with both arms ... holding him tighter than a cup of Ron-Ron Juice at Karma nightclub.

Snooki gave birth on Sunday ... but it appears she's already back to normal ... rocking a pair of platform wedges as she was wheeled back into reality ... TV ... as an MTV camera crew documented the entire thing.