Last night US Weekly celebrated their annual Hot Hollywood issue in New York with real life couple Zac Efron and Vanessa Hudgens. The adorable duo has been busy promoting HSM3 around the world prior to its big opening this weekend but Zac's already got other projects being highlighted. Just released is the trailer for 17 Again — it's like Big and Freaky Friday but with Hollywood's hottest rising star. Another costar couple, Gossip Girls' Blake Lively and Penn Badgley also attended but as usual skipped walking the red carpet together. Ugly Betty duo Becki Newton and Michael Urie played it up for the crowd again while Gavin Rossdale came solo. Sadly Hunter Parrish skipped the event although he was highlighted in the issue.

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Britney Spears headed to the dance studio in LA yesterday with her workout clothes in hand and wearing a t-shirt that read "The One I Love." These days her biggest loves are her boys and her career, and now that her license case ended in a mistrial, it should be even easier for her to gear up for her upcoming album and tour. The latest exciting news is that along with her Glamour and Rolling Stone covers, she'll be performing on GMA on Dec. 2 — which is both her birthday and the release date of Circus. She's already got a promo for the appearance, which you can check out below.

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Chanel pulled out all the stops to celebrate the opening of their mobile art pavilion in New York's Central Park last night. Silver and black were the colors of the night on stars like Sarah Jessica Parker, Kim Raver, Kate Bosworth and Karl Lagerfeld in his usual uniform. The night was so cold and windy that a pole fell on Kim Raver as she started walking down the red carpet. At one point James Rousseau sweetly offered Kate Bosworth his jacket and kissed her cheek when she looked chilly. She also laughed and chatted with Helena Christensen while enjoying the live music. Samantha Ronson's mom Ann talked to us about Lindsay and Samantha — more on that later — but needless to say it was a glamorous night from start to finish.

To see more of the party including Katie Lee Joel, Padma Lakshmi, Sarah Jessica Parker, Eve, Natalie Love, Zac Posen and others just read more
Natalie Portman was one of Paris Fashion Week's most fab attendees before briefly returning to help campaign for Barack Obama in Ohio. Now, she's back in the French city enjoying some down time. She and a friend went out for a scenic stroll on Monday before checking out a Picasso exhibit at the Grand Palais museum. Natalie doesn't just have art on the brain — the Harvard grad also knows a thing or two about economics recently offering a furry solution to the financial crisis. With so much to think about, looks like she isn't wasting any time dwelling on her recent breakup.

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Gisele Bundchen pulled out a pair of tiny jean shorts for a walk around LA with a friend yesterday. She was spotted at the Burberry party on Monday night, but managed to dodge the cameras. Maybe she needed a break from photo ops after being busy with lots of jobs recently, or perhaps she was just trying to keep a low profile to avoid any questions about her rumored upcoming wedding to Tom Brady.

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