Just two weeks after giving birth to baby Haven, Jessica Alba is back at the gym and already looking great post baby!

The Spy Kids 4 star has been Tweeting about her new workout regimen, recently expressing: "I did my first day of workout since I had the baby, just cardio for 40 mins -it's a start ... My doc told me I could start after 2 weeks. I'm going light, stationary bike and elliptical."

When one of Alba's followers Tweeted a thank you to the star for motivating her to lose her own baby weight, she replied: "let's do it together. I could use the motivation as well."

Katie Holmes looked adorable in a striped shirt, navy jacket and skin-tight black pants as she exited the Four Seasons hotel in Beverly Hills, on Thursday.

The Don't Be Afraid star recently confessed to Britain's Hello! magazine that she and daughter Suri Cruise are a little craft-obsessed. Holmes shared: "Suri and I do a lot of crafting projects, so there's always something going on. As a matter of fact, there's glitter all over our house."

Lets hope little Miss Suri doesn't get any on her $4 million wardrobe!

Denise Richards just might be the hottest soccer mom ever.

The Wild Things actress was dressed down in a loose-fitting tank and boyfriend jeans, as she escorted Lola and Sam to an athletic store for some soccer cleats, on Thursday.

It's been reported recently Richards and ex-hubby Charlie Sheen are going to be neighbors soon. The former Bond girl and her three daughters are set to move into a home just six doors down from the former Two and a Half Men star.

Sheen purchased the home within his own gated community last year.

Megan Fox popped into Ken Paves and took a few inches off her signature luscious locks on Thursday!

Of course, Meg struck a sexy pout as she exited. We're loving the look ... so we can't figure out why she hid her hair under a baseball cap!

But, Meg was more revealing in one area ... be careful with those shirt buttons, Foxy!

Where Paris Hilton goes, her fans follow ... even overseas! Love the military-inspired duds, P.

The 30-year-old heiress, who traveled to Europe for Petra Ecclestone's lavish wedding, has been enjoying all Paris has to offer including shops like Chanel. Ooh la la!

Paris left the Costes Hotel to head to the Bourget Airport. The next stop on her European vacation ... gorgeous Mallorca.

Gossip Girl star Chace Crawford kissed a girl, and he liked it!

Of course -- we're sure the girl, Kaylee DeFer (character Charlie Rhodes on the show) didn't mind either.

The two were filming new episodes for the show in New York City on Thursday, and after Crawford chased DeFer down -- he got what he wanted -- a romantic, arms-around-the-neck kind of kiss!

Check out all the pics of the steamy makeout sesh in our gallery below!

Vanessa Hudgens can't get enough pink and black!

On Wednesday, the actress wore a pink-and-black fringe top to lunch at Mare'Ka in Studio City. Thursday, she sported the colors in a more dressed-down way in Hollywood.

See all the pics below!

Alessandra Ambrosio, 30, took her daughter Anja, who just turned 3, to the park on Wednesday for some mommy-and-me time!

The pair were too cute -- the supermodel even joined Anja on the seesaw at Brentwood Country Mart.

Ever the model, Alessandra sported a long summer dress and a unique fringe vest while out.