Britney's been busy in the studio recording her much anticipated follow-up to 2008's Circus, but she may be working on her biggest song yet this week, according to her manager, Adam Leber.

Yesterday Leber tweeted, "Brit is recording a big big BIG new song on Friday with #MaxMartin & @TheDrLuke. I'm pretty sure it's a smash!"

Considering Max Martin previously engineered her smash hit "... Baby One More Time" as well as "3" and "If U Seek Amy", and Dr. Luke produced "Circus", we don't doubt this one will be a smash!

Dr. Luke, who previously worked with Brit on Circus chimed in with an update for fans, "Please continue to wait 4 Britney's new song!!!!"

But with great news like this, how can we wait?

The Chronicles of Narnia is back with a vengeance with the visually stunning trailer for the next installment, The Voyage of the Dawn Treader.

In the trailer, Edmund, Lucy and Eustace meet up on the beach and are transported back to Narnia after being swallowed up by a magical painting. Once in the fantasy land, they hit the rough seas on the ship, The Dawn Treader.

The fantastic voyage begins when the film hits theaters on December 10.

Today Brad Pitt returned to the set of Angelina Jolie's United Love Story, not only to continue his role as set photographer, but also to help keep his woman warm in the cold weather!

Since returning to Budapest, Brad and Angie have been practically inseparable. And although some reports say Brad's been a bit overbearing on the set of Angelina's first directorial effort, our photogs on the scene say Angelina is in complete control.

"Angelina is really comfortable letting Brad help," said our snapper. "She feels confident in her role as director and the crew seem to understand who they report too -- there's no confusion."

There's also no confusion as to the fact that this couple seems more in love and more in sync than ever!

Miley Cyrus is on a mission to change her squeaky clean image ... and with her bad girl role in the upcoming So Undercover, the former Hannah Montana star just may do that!

Miss Miley will not only be playing a tough-as-nails sorority girl who's undercover, but she'll be carrying a gun and riding a motorcycle, according to Hollywoodlife.com.

The movie script says that the teen queen, who is playing the part of badass Molly, will be a private eye who takes on government cases to help her dad pay a debt to a bookie.

Billy Ray's little girl will also be showing the world her foul mouth, too .... saying words like "holy s**t" throughout the movie, adds the site.

Is Miley channeling Sandra Bullock in 2000's Miss Congeniality? We can't wait to see the Disney starlet's transformation!

New mom Kendra Wilkinson shows off her slimmed-down curves in a snow-bunny outfit on the cover of Playboy's December Christmas-themed issue.

Kendra, who previously turned down the mag owned by her ex-boyfriend Hugh Hefner after becoming a wife and mother, said the decision to go forward with the shoot was "the hardest decision I've ever had to make in my life."

But Mrs. Baskett went on to say, "I'm 25, I have a son. If I don't do Playboy now I probably won't ever do Playboy again... I want to say 'F' you to the world and say 'moms can be sexy'."

Well, maybe not ALL moms, but definitely this one is looking super-hot!

UPDATE: No wonder Kendra looks so hot -- the pix were taken two years ago! On her website, Kendra writes:

"Hey guys! So I wanted to clear something up really quick! A lot of you saw on my show that I was struggling to decide whether to pose for Playboy again or not. I AM on the December cover of Playboy but it wasn’t from a recent shoot. The photos are from a shoot I did 2 years ago when I was still living in the mansion. I’m flattered to be on the cover again and as you all know Playboy has a very special place in my heart! I just wanted you guys to know I didn’t recently pose."

But brrrrr they must have been cold!

Last night Kim and Kourtney Kardashian were snapped getting pedicures in New York City, and even though their feet are going to be covered in boots and pumps for the next few weeks, the ladies just had to get their toenails painted. Hey, being glam and gorgeous ain't easy! But will Kim K's perfect pedicure help her find Mr. Right on the girls' new reality show? Only time will tell...

Kate, Fergie, Julia and Cher ... need we say more? These glamour gals worked every inch of their A-list bodies at Glamour Magazine's Women of the Year event in New York City.

Kate Hudson, who was a presenter, looked absolutely divine in a shimmery Lanvin dress with fur wrap. Uh oh, we hope that's faux fur, Ms. Hudson! Superstar of the Year Award winner Fergie, who came with the best accessory of all ... hot hubby Josh Duhamel, wore a spicy red Zac Posen. Muy caliente!

The 20th annual event, which took place at Carnegie Hall in Manhattan, celebrates entertainers with humanitarian side projects.

Lifetime Achievement winner Cher accepted her award with the following words:

"What I want you girls and what I want for everyone, especially women, is that they don't take no for an answer because no is just some bull***t word that someone made up."

You go, girls!

See all the lovely ladies who came out for Glamour's big NYC event in the gallery below ...

The trend of Hollywood splits continues with the separation of The Mummy actress Rachel Weisz and her longtime love Darren Aronofsky, who directed The Wrestler starring Mickey Rourke.

Although the two have been together for nine years, they never officially were married. A rep for Rachel Weisz has released the following statement:

"Rachel Weisz and Darren Aronofsky have been separated for some months. They remain close friends and are committed to raising their son together in NYC."

The two are seeking joint custody of their young son Henry Chance. Reports claim that Weisz is already getting cozy with Mr. 007, Daniel Craig.