Always seeming to have something on the agenda, Rachel Bilson ventured out to attend a business meeting in Hollywood on Wednesday morning (September 2).

Looking her usual cute self, the “Jumper” actress hopped out of her car before feeding the meter – then passing by paparazzi as she prepared for the day’s work duties.

Meanwhile, you can catch Rachel tomorrow night on “Project Runway” – as she just so happens to be this week’s celebrity guest judge.

The brunette beauty follows a star-studded lineup on the fashion show, as Rebecca Romijn and Lindsay Lohan both made appearances the past two weeks.

Looking a tad flustered, Ashlee Simpson was spotted going through security at LAX Airport earlier today (September 2).

The “Outta My Head” star is traveling just ahead of the season premiere of “Melrose Place” – which airs this Tuesday, September 8th at 9/8 c.

And it sounds like Miss Simpson enjoys her “Melrose Place” character, Violet Foster.  In a recent interview she told, “It’s going to take a while for the audience to figure her out, which has been a lot of fun to play.”

Ashlee continues, “She does lots of things that leave you hanging. We’re still working on developing her. She does sneaky things that the other characters don’t know about, but the audience will know that she’s doing it.”

Getting ready for a flight back to the States, Ashley Greene was spotted being dropped off at the airport in Vancouver, Canada on Wednesday (September 2).

Accompanied by her pet pooch Marlow, the 22-year-old actress looked stylish in a plaid buttondown shirt with jeans and big brown boots as she made her way into the terminal before disappearing past the security checkpoint.

As previously reported by Gossip Center, Miss Greene has been busy shooting scenes for her Alice Cullen role in the third part of the “Twilight” saga, “Eclipse”.

In related news, it was announced earlier today that fans will be treated to their first look at the “Twilight” follow-up, “New Moon,” when the 2009 MTV VMAs air on September 13.

Out on promotional duties, Aubrey O’Day paid a visit to PIX11 Morning News in New York City on Tuesday (September 1).

The former Danity Kane singer was there to boost interest in Peepshow, which is an all-female revue in Las Vegas at Planet Hollywood.

Meanwhile, Miss O’Day also has released a statement clarifying her recent comments on the Fox News program “Hannity,” during which she called Fidel Castro and Adolf Hitler “brilliant.”

Talking to MTV News, Aubrey said, “Murderers and dictators generally are some of the smartest people out there – they just use their brain power for evil purposes. I don’t condone any of their evil behavior, but I was asked about their intellectual firepower … and in my opinion you can’t have a low IQ and wreak that much havoc on the world.

What Hitler succeeded in doing was deplorable. And I hope we never see such an abusive use of power again.”

Enjoying a beautiful summer afternoon, Nicole Kidman and Keith Urban were spotted out and about in Nashville, Tennessee on Saturday (August 30).

The “Moulin Rouge” actress and her “Days Go By” hubby looked like the picture of marital bliss as they made their way around town on their usual daily routine.

Nicole and Keith grabbed a pick-me-up at a local coffeehouse before they headed off to their gym for some daily exercise.

Unlike many of their colleagues in the film and music industry, Nicole and Keith would much rather live the simple life free of the glitz and glamour of Hollywood.

Currently without a boyfriend to keep her company, Jessica Simpson recruited her BFF stylist Ken Paves to accompany her on a flight out of LAX Airport on Monday afternoon (August 31).

The “Do You Know” singer sported a long blue coat, black tights, and baby blue heels as she offered up a big smile while passing through the departures terminal.

On the career front, Miss Simpson’s rep recently denied claims that Jess was lined up as a possible replacement on “American Idol” for Paula Abdul, telling press, “There’s no truth [to the story]. No one reached out to the show.”

And while “Idol” appears out of the question, the 29-year-old is currently set to star in her own VH1 series called “The Price of Beauty”.

She may come across as a confident, self assured woman, but even Megan Fox has her fair share of insecurities.

The “Transformers” star recently opened up about her self-image, explaining, “I’m very confident in how I project my personality,” she says. “But in terms of how I look, I’m completely, hysterically insecure. I’m self-loathing, introverted and neurotic.”

The 23-year-old beauty also admitted that she’s a bundle of nerves and gets diarrhea whenever she has to go onstage.

For more on Fox’s interview be sure to pick up the October issue of Cosmopolitan magazine.

Spending the weekend together in Sin City, Paris Hilton and Doug Reinhardt made a stop at Rogue for a “DJ Hero” party on Sunday evening (August 30).

According to a source on the scene, Paris happily posed with the new video game hardware, which received design help from the late DJ AM, before the newly rekindled couple headed off to Body English at the Hard Rock Hotel & Casino for an appearance.

In related news, the courts ruled earlier today that Miss Hilton “may pursue her lawsuit against Hallmark Cards over its use of her picture and catchphrase “That’s hot” on a greeting card.”

According to Reuters reports, Judge Diarmuid O’Scannlain said “the basic setting is the same: we see Paris Hilton, born to privilege, working as a waitress.” He added that Paris “has at least some probability of prevailing on the merits before a trier of fact.”

She was stripped of her beauty queen crown back in June, and now Carrie Prejean is fighting back against the people who took it away from her.

The former Miss California sued two Miss USA California officials on Monday, claiming that she lost her crown solely for her religious beliefs and is seeking unspecified damages.

Carrie is going after Miss USA California officials, Keith Lewis and Shanna Moakler, who claim they stripped her of the crown for failing to make required appearances, and for making unsanctioned public appearances.

The beauty queen’s attorney, Charles S. LiMandri says, “We will make the case that her title was taken from her solely because of her support of traditional marriage.”

Showing off a brand new hair style, Kristen Stewart sported some extensions while shooting scenes for “The Twilight Saga: Eclipse” in Vancouver, Canada yesterday afternoon (August 28).

The brunette beauty donned jeans and t-shirt while holding a fake diploma and yellow graduation gown.

Her on-screen dad, Billy Burke, joined Ms Stewart on set and later took to his Twitter page, saying, “Just got to hotel in Vancouver. Start tmorow early. Someone gets a cap and gown. G’nite for now.”

In her upcoming film, “Welcome to the Rileys,” she plays a troubled young woman who makes a living as a lap dancer and prostitute. The film is directed by James Gandolfini, and has her walking around naked in many scenes.