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Just a few days after celebrating his 24th birthday at Jet Nightclub at the Mirage Hotel and Casino in Las Vegas, Rob Kardashian underwent emergency surgery here in Los Angeles to remove his appendix.

After complaining of stomach pains, Kim's younger brother was taken to an LA hospital yesterday for the procedure.

Kim, 30, tweeted, "'Robbie is sick! He will be ok though!" In response, Rob tweeted the above photo and showed a sense of humor by saying, "This is what happens if you don't eat your Wheaties..."

We wish him a speedy recovery! Rob will be a big part of sister Khloe and Lamar's new reality show. Find out when it premieres ... after the jump.

Samantha Ronson was spotted out and about in Los Angeles last night, and as usual, the super blonde DJ declined to comment on Lindsay Lohan's legal drama and dad Michael's domestic violence charges...

A Santa Monica judge has denied Charlie Sheen's requests to stop private arbitration between Warner Bros. and Two and a Half Men producer Chuck Lorre over Sheen's termination from the show.

Prior to Sheen suing the studio and Lorre for $100 million, Warner Bros. initiated an arbitration proceeding against the star with JAMS, a private dispute resolution company. However, Sheen made it clear that he wants to press his claims in a public court, so his attorney filed an emergency temporary restraining order this morning asking for an injunction preventing JAMS from moving forward with the case.

After reading the court papers filed by the attorneys, the judge denied the injunction, as this is a matter that must be taken up by Judge Allan Goodman, who is presiding over the $100 million lawsuit. Lorre's attorney Howard Weitzman tells THR the court's ruling "was not a surprise. The judge found no 'emergency' existed and ordered Mr. Sheen's attorneys to follow normal procedure in their attemps to halt the arbitration of this dispute."

Sheen's attorney Marty Singer tells THR he will be back in court tomorrow morning to ask Goodman for an injunction. "She denied the motion not on the merits but on a procedural issue," Singer says. "We will be back tomorrow, and we are confident in our position."

Gwen Stefani, who has created a successful fashion line called Harajuku Lovers, is donating $1 million to Japan.

The platinum blonde rocker has announced she'll be giving the generous donation to Save the Children's Japan Earthquake/Tsunami Children in Emergency Fund.

On No Doubt's website, Stefani wrote:

“I’ve been inspired by Japan for many years and have a true love, appreciation and respect for the Japanese people and their culture. The disaster in Japan is beyond heartbreaking and I want to do anything I can to help. I would never be able to make a gesture like this without the love and support of all the fans over all these years.”

Find out how Gwen is using her fashion line to raise even more money ... after the jump.

Yesterday we spotted 42-year-old Brendan Fraser leaving the gym in Los Angeles, and we're happy to see him working on his fitness, but remember how hot he was back in the first Mummy movie? Sigh ... those were the days!

So what's new with Brendan? He's set to begin filming Seconds of Pleasure this month, which is a romantic comedy about a group of strangers on a plane whose lives end up intersecting over the course of the flight. The flick also stars Christina Hendricks, Julia Stiles, Matt Dillon and Ed Harris, so we're curious to see who winds up in the lavatory together! Er, right?

Pamela Anderson is attached at the hip to new boyfriend and pro surfer Jon Rose.

The sexy twosome couldn't keep their hands off each other while strolling through Ibirapuera Park in Sao Paulo, Brazil for World Water Day. Looks like Pam has snatched up another hottie!

Besides loving the beach, the two have something else in common ... both are activists. While Pam is dedicated to PETA, Rose is the founder of Waves for Water, an organization whose mission is to "get clean water to everyone who needs it."

Judging by these photos, it's no wonder the 43-year-old former Playboy Playmate still attracts younger men. With her body looking that sexy, we don't blame them!

Find out which of Pam's former co-stars regrets not sleeping with her ... after the jump.

Silver screen legend Elizabeth Taylor passed away at the age of 79 today, and stars of all ages have reacted to the sad news of her death.

Close pal Elton John told CNN, "We have just lost a Hollywood giant. More importantly, we have lost an incredible human being." Barbra Streisand added, "It's the end of an era. It wasn't just her beauty or her stardom. It was her humanitarianism. She put a face on HIV/AIDS. She was funny. She was generous. She made her life count."

Former President Bill Clinton and Secretary of State Hillary Rodham Clinton released the following statement:

"With the passing of Elizabeth Taylor, America has lost one of its greatest talents and fiercest advocates for HIV/AIDS research. Born in England, Elizabeth became thoroughly American royalty. For more than a generation, she brought to life unforgettable characters on film, and her tireless efforts to combat AIDS brought hope to millions of people around the world. We were honored to host her at the White House in 2001 when she received the Presidential Citizens Medal for her relentless crusade for more AIDS research and better care."

Taylor was admitted to Cedars-Sinai Medical Center last month after suffering congestive heart failure symptoms, and she was with her four children at the time of her death.

Just hours after allegedly throwing a chair through a glass window at Good Morning America studios on Tuesday, Chris Brown decided to get physical on the basketball court, which seems like a much better way to work out any anger issues he may still have.

Before we snapped him heading to his record release party for his new CD F.A.M.E., Chris went to the basketball courts at West 4th Street in New York City's Greenwich Village to play a few pick-up games. We're not sure what was on his mind (Rihanna? Robin Roberts? His album release?) but the tatted up R&B star certainly brought his A-game!