Hilary Duff's Pregnancy Fitness

Continuing to place importance on a healthy pregnancy, Hilary Duff was spotted out at her yoga class in Toluca Lake, CA on Monday (November 7).

The expecting singer/actress/author gave a smile and a wave as she shuffled out of the local fitness center following the day-beginning workout.

Meanwhile, Miss Duff also recently took to Twitter to thank everyone who purchased a copy of her latest literary work, Devoted.

Tweeting her appreciation, the 24-year-old wrote, "I wanted to sent out a big thank you 2 every1 who supported devoted! You guys made it a great success and I so gratefully appreciate u!love!"

Katie Holmes & Adam Sandler Premiere "Jack and Jill"

With less than a week remaining until their movie's theatrical release, the stars of "Jack and Jill" stepped out for the Columbia Pictures film's red carpet premiere in Los Angeles, CA on Sunday (November 6).

Held at The Regency Village Theatre, Adam Sandler worked the arrivals area while joined by his charming co-star Katie Holmes.

Set for a November 11th cinema debut, "Jack and Jill" tells the tale of "family guy Jack Sadelstein, who prepares for the annual event he dreads: the Thanksgiving visit of his identical twin sister, the needy and passive-aggressive Jill, who then refuses to leave."

Directed by Dennis Dugan, the comedy which sees Sandler take on the dual role and Jack and Jill also stars Al Pacino, David Spade, Nick Swardson, Tim Meadows, Norm MacDonald and Dana Carvey.

Justin Bieber Closes Out the 2011 MTV EMAs

Not letting his baby drama get in the way of his scheduled performance, Justin Bieber took the stage at the 2011 MTV European Music Awards in Belfast on Sunday (November 6).

The 17-year-old sensation received a stirring ovation from the Odyssey Arena crowd as he treated audience members and viewers at home to "Mistletoe" from his newly released Christmas album "Under the Mistletoe" along with his hit single "Never Say Never".

Along with his stage efforts, Justin was nominated in three categories at the 2011 MTV EMAs, of which he ended up taking home two trophies for Best Male and Best Pop Act.

Aside from his EMAs performance, Bieber has revealed that he plans on taking a paternity test to bring an end to claims made by Mariah Yeater that he fathered her newborn child.

According to TMZ, Justin has hired legal eagle Howard Weitzman to set up the DNA test, with plans to file a lawsuit against Yeater after the results prove that he isn't the dad.

Willow Smith & Nicki Minaj's "Fireball" Music Video Shoot!

Teaming up to shoot the video for their collaborative effort, Nicki Minaj and Willow Smith were hard at work on the set of "Fireball" in Los Angeles, California on Saturday (November 5).

The "Super Bass" hit maker was decked out in colorful garb as her "Whip My Hair" singing partner grooved her way around the set while mother Jada and brother Jaden watched on.

Tweeting about the effort, Miss Minaj wrote, "I'm the Fire Ball of the party." She added, "The entire Smith family >>>>>>>> I'm the newest member of the family! Lmaoooooo. How cute are they barbz???? Willow goin ham in the video."

Meanwhile, fans of Miss Smith can look forward to a big date on the calendar this week - as Willow will be taking the stage on "The X Factor" on November 10th.

Offering up a behind the scenes rehearsal video (watch below), the 11-year-old tweeted, "“Getting ready for X Factor next week…here’s a vid of how we get our rehearsal on…WARRIORETTE STYLE <3"

To listen to "Fireball," press play below!

Jessica & Ashlee Simpson Launch Jessica Simpson Girls

Ready to bring their new looks to store racks around the States, Jessica and Ashlee Simpson joined forces at the Belk Crabtree Valley Mall in Raleigh, North Carolina on Saturday (November 5).

The Simpson sisters had quite the marvelous time as they happily posed with fans - young and old - while launching their co-created tween clothing line named Jessica Simpson Girls.

The collection will include denim, knits, hoodies, pullovers, graphic tees, outerwear and footwear, with Jess previously telling WWD, "Creating a tween apparel collection was a natural extension for the brand. I'm excited to bring my sister, Ashlee, along as co-creative director of this division, because she brings a savvy rocker edge that defines today's tweens."

Of the project, Ashlee added, "My goal as co-creative director will be to design clothes that will help inspire young girls to express their personalities and creativity through fashion."

Heidi Klum: Shopping with Leni and Lou

Getting to spend some quality time with her little ladies, Heidi Klum was spotted out in Brentwood, CA on Thursday (November 3).

Joined by her mother, Erna, as well, the “Project Runway” mama looked style savvy in a gray blazer paired with gray jeans, a scarf and hat as she and Leni and Lou did a bit of shopping.

Two-year-old Lou showed off her gorgeous locks and sported jeans and a pink t-shirt while toting a plastic pumpkin filled with Halloween candy.

Meanwhile, seven-year-old Leni opted for cut-offs and a Dr Seuss t-shirt but after while emerged from a boutique donning a brand new all-pink ensemble and a tiara to boot.

"J. Edgar" Holds Los Angeles Premiere

Gearing up for the November 9th release, “J. Edgar” premiered in Los Angeles earlier tonight (November 3) and there were plenty of stars in attendance.

The film’s leading man Leonardo DiCaprio showed up looking dapper as he posed for the paparazzi outside the Grauman’s Chinese Theatre along with director Clint Eastwood.

Also in the house were handsome hunks Armie Hammer, Colton Hayes and Ed Westwick, as well as the beautiful Naomi Watts who was joined by husband Liev Schreiber.

“J. Edgar” is about J. Edgar Hoover, “the face of law enforcement in America for almost 50 years. Hoover was feared and admired, reviled and revered. But behind closed doors, he held secrets that would have destroyed his image, his career, and his life.”

Jennifer Aniston's "Wanderlust" Trailer: Watch Now!

Getting theatergoers ready for their cinematic offering, Universal Pictures has released the first trailer for the upcoming comedy "Wanderlust".

The R-rated caper also put forth two stills from the movie, with both featuring the leading co-stars of Jennifer Aniston and Paul Rudd.

Directed by David Wain, the film tells the story of "an urban couple who branches out to live a more counter-culture lifestyle."

Set for a February 12th release date, "Wanderlust" also stars Malin Akerman, Ray Liotta and Alan Alda, as well as Miss Aniston's new beau, Justin Theroux.

Kristen Stewart Arrives Back in LA for "Breaking Dawn"

Making her way back to Tinseltown just in time to delve into her "Breaking Dawn" press efforts, Kristen Stewart was spotted arriving into LAX airport in Los Angeles on Wednesday afternoon (November 2).

The Bella Swan actress looked a bit tired following the long flight from London, as she's been busy filming "Snow White" in the UK locale while still sporting a bandage on her recently injured hand.

The return to the States comes as Miss Stewart and co-stars Robert Pattinson and Taylor Lautner will be teaming up for a long and eventful day of promotions on Thursday (November 3).

Among the trio's stops are a morning visit to Grauman's Chinese Theatre with a 10AM PT ceremony immortalizing the "Twilight" cast on Hollywood's Walk of Fame.

Kristen, Robert and Taylor will also be partaking in a Q&A session during the "MTV First: Breaking Dawn - Part 1" event - which comes immediately following the debut of a new "Breaking Dawn" clip slated to air at 7:56PM ET.

In the meantime, below is the recently released "Breaking Dawn - Part 1" featurette to help gear up for tomorrow's full day of "Twilight" happenings!

DWTS: Justin Bieber Performs, David Arquette Sent Packing

As he continues to promote his just-released Christmas album "Under the Mistletoe," Justin Bieber made a primetime TV appearance as the special performer on Tuesday night's (November 1) episode of "Dancing with the Stars".

The 17-year-old joined forces with Boyz II Men for a rendition of their holiday collaboration "Fa La La" while also treating the audience and viewers at home to his hit song "Never Say Never".

Aside from Justin's much-awaited performance, the ABC dance competition series also sent one of the remaining participants packing as the field of remaining pairs continues to narrow down.

As for the latest cast-off, it was David Arquette and partner Kym Johnson who ended up being voted off this time around, with Arquette saying after the announcement, “This whole thing has been incredible," while jokingly adding, "But there must be a mistake!”

The 40-year-old added, “I came here to get to know more about myself, face my fears, and have America get to know more about myself, and dance."