Just returned from a romantic Costa Rican getaway, Kim Kardashian was spotted shopping it up in West Hollywood, California on Tuesday afternoon (March 9).

Joined by a gal pal, the E! reality darling made her way to Robertson Blvd as she loaded up on wardrobe additions at the Intermix boutique.

Making sure to keep up on her fitness routine, Kim hit the gym earlier in the day, tweeting, “On my way 2 the gym! Listening to Power 106! Love Liz! Big Boy and Tattoo!!!”

Looking to maintain her gorgeous appearance and, more importantly, her health, Kim later wrote to her faithful fans and followers, “I’m going to start eating better, what are some good no carb snacks?”

Still basking in her Oscar glory, Sandra Bullock was spotted spending time with family while out in Seal Beach, California on Tuesday (March 9).

The “Blind Side” beauty accompanied her husband Jesse James’s daughter, Sunny Lindemulder, as they popped into a local toy store to pick up a few presents for the little one.

Just two days removed from winning Best Actress at the 2010 Academy Awards, Miss Bullock received praise from her West Coast Choppers CEO hubby.

Talking to Us magazine, James said, “I’m so proud of her. She deserves it more than anybody. I got teary eyed when she won. I’m so happy.”

Always the responsible pet owner, Rachel Bilson was busy tending to her pet pooch Thurmen Mermen in Toluca Lake, California on Tuesday afternoon (March 9).

The “Jumper” cutie happened to be paying a visit to a friend’s house, as paparazzi caught her toting her canine companion in her arms following the midday outing.

Meanwhile, Miss Bilson’s rep recently spoke up to nix the seemingly always-present pregnancy rumors after Rachel was spotted heading into a doctor’s office over the past weekend in a loose-fitting raincoat.

Telling that the former “OC” star and her fiance Hayden Christensen aren’t expecting, Rachel’s spokesperson simply said that there’s “absolutely no truth to Rachel being pregnant.”

Finished up with her Oscar afterparty appearance, Jessica Simpson was spotted making her way through LAX Airport in Los Angeles on Tuesday (March 9).

Clad in an Aviator Nation hoodie, brimmed hat and shades, the “Dukes of Hazzard” damsel snuck through the terminal as she did her best to avoid awaiting paparazzi.

Earlier in the day, Miss Simpson phoned in for an interview with Ryan Seacrest’s KIIS-FM radio show, talking about her much-criticized appearance at last year’s chili cook-off.

Jess tells, “I was embarrassed. I didn’t want to show my face. I was touring with the Rascal Flatts at the time and had to get on stage every day and kind of just face it and hope to God I wasn’t wearing an unflattering outfit ... Obviously, I didn’t look like Daisy Duke.”

Meanwhile, fans of Miss Simpson can check out her all-new VH1 reality show “The Price Of Beauty,” which premieres on March 15. 

Pushing forth with her stage duties, Keira Knightley was spotted greeting fans after her performance in “The Misanthrope” in London on Tuesday night (March 9).

Wearing a casual ensemble topped off with a leopard print scarf, the “Pirates of the Caribbean” cutie strolled out of the Comedy Theatre looking a bit tuckered out from another long day of work obligations.

In related news, it has been reported that Miss Knightley has a new co-star for her upcoming movie “The Talking Cure”.

Set to start shooting on May 17, Keira is now teamed up with Viggo Mortensen after Oscar-winner Christoph Waltz dropped the project to film another flick titled “Water for Elephants”.

Ready to change up her look once more, Kate Gosselin is scheduled to revamp her $7,000 hair extensions over the course of the week.

The former TLC reality star mom’s stylist, Ted Gibson, tells of the plans, “We’re taking them out and we’re not putting them back in until Thursday. So she’ll have short hair for a day.”

Continuing to dish on Miss Gosselin’s hairdo plans, Gibson says, “We’re actually doing three different shades of blonde, a caramel, a beige blond and a little bit of a lighter blonde.”

Making the change before she hits the “Dancing with the Stars” stage on March 22nd, Kate’s stylist adds, “The extensions will last through the whole time she’s on the show.”

Enjoying a romantic midday outing, Kourtney Kardashian and Scott Disick were spotted out in Miami, Florida on Tuesday afternoon (March 9).

The E! reality cutie and her babydaddy took a leisurely stroll around town before stopping off for a lunch date – during which the twosome shared a sweet smooch.

As previously reported by Gossip Center, Kourtney was out earlier this morning keeping fit at the local gym.

Tweeting about the sweat session, Miss Kardashian wrote, “Always have a better day when starting it off at the gym. The beach is packed today its insane!”

Ready to try her hand at writing, Hilary Duff has announced her plans to pen a series of young adult novels for Simon & Schuster.

The recently engaged actress is kicking off the deal with an upcoming book titled “Elixir,” which is due to hit bookstore shelves on October 12th.

According to press reports, Miss Duff’s first writing effort “will feature the adventures of a globe-trotting photojournalist named Clea Raymond.”

Also in the works is another book aiming to help children cope with the difficult subject of parental divorce, with a release date slated for 2012. 

Everybody needs a vacation once in awhile, and Michael J. Fox and his wife were spotted on a beautiful beach in St. Barts on Tuesday (March 9).

The “Family Ties” co-stars - who have been married since 1988 – looked to be having a marvelous time splashing in the ocean, and soaking up the sun.

In other news, being a victim of Parkinson’s disease, Fox will be honored for giving an astounding $175 million for the research of developing medication for the disease.

According to the BBC, the iconic actor will receive an honorary degree of medicine from Sweden’s Karolinska Institute which also awards the annual Nobel Prize in the same discipline.

Out enjoying some time with her baby girl, Jennifer Garner was spotted making a run to a coffee shop in Santa Monica, CA early Tuesday (March 9).

The busy mother of two sported a Boston Red Socks sweatshirt as she joyfully juggled two cups of joe and daughter Seraphina.

The night before, the “Valentine’s Day” actress treated both 4-year-old Violet and 1-year-old Seraphina to an early dinner at Rosti Tuscan Kitchen in Santa Monica.

Hopefully, Garner is taking advantage of her free time.  Per imdb’s website, the actress has eight films lined up in the future. Her next one “Butter” is expected to hit theaters in 2012.