Yum yum yum!

On Tuesday Hilary Duff stopped by Crumbs bakery to buy some Valentine's Day goodies, and after getting a peek at the pretty pink, red and white cupcakes she picked out, we're tempted to run over and get some!

While the 25-year-old actress indulges her sweet tooth every now and then, she definitely busts her butt at the gym to work it all off. Hil and hubby Mike Comrie attended the PGA Tour Wives Association 25th Anniversary Event on Monday, and she revealed to Us Weekly that her trainer Gabe Johns has helped her "lose a sh*t ton of weight."

She added, "I lost like 30 pounds. He's a boxing trainer and he comes to my house. I live in the canyon, so we just run. He runs my a** up and down the hill. We do some circuit stuff and boxing, which is a lot of fun and you get out a lot of sh*t that way. The other trainer I want to give a shout out to is Vivica, and she has been my Pilates instructor for like seven years. And Harley Pasternak, who is like a genius. He is a sculpting genius."

Wonder what they'd say about the carbs and sugar though? Then again, if we had three trainers, we'd probably cheat on our diet a little bit too!

Another day, another crazy outfit from Britney Spears!

Britney and her mom Lynne were snapped picking up Brit's sons Sean Preston and Jayden from gymnastics on Tuesday, and the boys ran straight into Brit's Mercedes SUV without any shoes.

While Britney skipped out on the Grammys this Sunday, she's set to release a remixed music video for "Scream & Shout" this Friday, and we have a feeling we're going to get confirmation any day now on which Caesars property she'll pick for her long term Las Vegas concert gig.

Maybe Brit will figure out a way to have her boys involved in her show? After all, taking gymnastics classes could teach them a trick or two!

After sweating it out at the gym, Jennifer Garner gave her youngest daughter Seraphina a piggyback ride during a coffee run in Brentwood on Tuesday. Shh, don't tell Violet! Up until about two years ago, this was her spot...

Jen just got back from London on Monday evening, and we're impressed that she's already back to the daily grind, especially considering hubby Ben Affleck might not be back in town yet! After all, we didn't spot him stepping off a plane last night...

On Tuesday a solo Liam Hemsworth was spotted shopping at Channel Islands Surfboards in Santa Monica, and between shooting movies and spending time with fiancee Miley Cyrus, we're not sure when the Aussie hottie is gonna have time to actually hit the waves!

Liam recently wrapped filming on The Hunger Games: Catching Fire and Empire State, he's currently shooting Paranoia, and after that he'll get to work on Timeless and Arabian Nights.

Of course, we're most excited for the Hunger Games sequel ... after all, we'll be seeing much more of Liam's character Gale in the second installment of the mega successful film franchise.

Lady Gaga has cancelled Born This Way Ball concert dates in Chicago, Detroit and Hamilton, Ontario due to severe joint pain.

"I barely know what to say," she wrote on her Facebook page yesterday. "I've been hiding a show injury and chronic pain for some time now, [and] over the past month it has worsened. I've been praying it would heal. I hid it from my staff. I didn't want to disappoint my amazing fans. However, after last night's performance I could not walk and still can't."

Gaga added that she has synovitis, which defined as severe inflammation of the joints. "I hope you can forgive me, as it is nearly impossible for me to forgive myself," she contineud. "I'm devastated & sad. It will hopefully heal as soon as possible. I hate this. I hate this so much. I love you and I'm sorry."

Get better!

Less than an hour after returning home from Brazil, Kim Kardashian, her sister Khloe, Kanye West, and mom Kris Jenner stopped by the doctor's office in Beverly Hills for a pre-natal checkup.

Kim started showing a few weeks ago, but she's still not ready to give up her designer duds for maternity clothes, as evident from the skintight leather pants she wore today. Kim looks great, but her baby bump could definitely use some breathing room! Wonder if she's going to find out the sex of the baby?

After a trip to the OB/gyn, Kimye stopped by Pinkberry for a sweet treat ... gotta satisfy those pregnancy cravings!

Halle Berry is one of the best hands-on Hollywood moms!

The Oscar-winning actress was in great spirits while walking adorable daughter Nahla to school. Love that smile.

There's a chance Olivier Martinez's fiancee will be starring in the upcoming flick X-Men: Days of Future Past, but the film's director, Bryan Singer, wouldn't say much. At a press conference, Singer said:

"I can't say. I don't know yet. And it's not necessarily a deal making aspect at all. I want to make sure it'll make sense."

We hope so!

Oh Vicky B, you never cease to amaze us!

Victoria Beckham and her daughter Harper hit Bergdorf Goodman for some shopping today following the debut of her lower priced line, VVB, and the British beauty did some self promotion by donning items from her own collection as she made her fashionable exit from the department store.

VB has been earning rave reviews for her collection during NY Fashion Week, so she must be thrilled!

How would the former Spice Girl describe her designs?

"Reflection, texture and simplicity in design were my starting points - and I have strived to keep true to the essence of the line while incorporating new finishes and fabrics. For me, it is the application of a refined quality within a mannish modernity that has proved to be such an exciting part of the design process this season. This has encouraged me to develop and enrich the collection for my customer," she explained of her inspiration.

Who knew Posh would be more famous for her style sense than for her singing?!