Are you ready for the list of celebrities vacationing together in Hawaii? There's Courteney Cox, David Arquette, and Coco; Tobey Maguire, Jennifer Meyer, and Ruby; Isla Fisher, Sacha Baron Cohen, and Olive; Leonardo DiCaprio, Lukas Haas, and a whole bunch more buddies. Phew. The A-List group of friends were all out on a boating, snorkeling, paddling trip together at the end of last week, and there's just too many treats to even describe in these photos. From Leo playing with little Olive to Isla not being quite as adept on the surfboard as Courteney and her hot bikini body. How goofy does Leo look? We got to see a little of the Cox-Arquettes solo in Hawaii as well as Isla, Sacha, and Olive playing around, but it's so much more fun to see the whole crew together! What a great way to celebrate the end of Summer.

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The boys arrived at the Venice Film Festival this morning, and we couldn't be happier to see them! Brad Pitt had Maddox and Pax by his side to meet up with perfectly relaxed and handsome looking George Clooney. The duo are slated to attend a Not on Our Watch Event tonight before tomorrow's big premiere of their movie Burn After Reading. Last year the whole Jolie-Pitt crew made the trek to the festival, but with the two new additions we wouldn't be surprised if Angelina, the girls, and the babies sat this one out. Instead, Maddox and Pax get some man time with Brad dad and his buddies in Venice, not too shabby.

Lots more of Brad, Clooney, and the boys, so read more

Britney Spears spent another day shopping — this time it was her house getting decorated rather than her wardrobe — with her brother Bryan in Beverly Hills yesterday. The pop star picked up some candles and flowers, while we come to terms with the fact that she won't be lighting up the VMA stage (boo). Even Kim Vo, the hairstylist who talked about doing her hair for the show, admitted that his statements were just "theoretical." Hopefully this excursion didn't involve any detours into street fairs, but even so, she's still an exciting celebrity sighting for her fellow shoppers.

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Hayden Panettiere turned 19 last Thursday and celebrated over the weekend with some girlfriends at her new house in LA. The girl of honor donned a b-day hat and necklace as well as a blingin' metallic bikini for the Sunday afternoon pool party. Hayden even brought her doggie in for a swim, though the pup doesn't look quite as thrilled about the dip as his actress owner. It looks like a welcome break from filming, red carpets, or fielding questions about her parents dispute, but missing from the action was her man Milo.

Bauer-Griffin Online

A bikini-clad Julia Roberts took Phinnaeus, Hazel, and Henry to the pool and beach on Sunday during their Hawaiian vacation. While we didn't catch a glimpse of doting Danny, the rest of the family had lots of ear-to-ear smiles and play time. How adorable is Phinnaeus's fiery red hair and Hazel's cute sun hat? Julia's new movie looks like a real tear-jerker, but in real life everything about this actress screams giggles and fun.

Lots more photos of Julia and her kids' Hawaiian vacation, so just read more

To help you get that jump start on your new Fall wardrobe, we're having a fun contest every week for five weeks. Each Tuesday morning, we'll tell you what key items to search for on ShopStyle to include in our "PopSugar Fall Wardrobe" group.

Kicking off round four of our Fall wardrobe contest, this week we're keeping the ball rolling with a fitted blazer, flats, and a long necklace — use Kate Moss's put-together look as inspiration. For this week, just follow these easy steps:

• Log into your profile on ShopStyle (remember, if you have a TeamSugar profile, you have a corresponding one on ShopStyle)
• Create a look by picking your favorite fitted blazer, flats, and long necklace for this Fall season
• Add the look to the "PopSugar Fall Wardrobe" group

. . . and you will be entered to win $500 this week! Continue adding the specified items from each of our challenges for the next two weeks, and be entered to win the grand prize of $5,000 to buy anything on ShopStyle.

If you're joining the challenge late, no worries, just go back to the previous posts and complete the challenges in your StyleBook, and you will be entered to win the $5000 grand prize!

Be sure to include items from a variety of retailers, since being able to shop all your favorite brands in one place is what makes ShopStyle so genius.

To see all the official rules, click here.

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Jennifer Aniston was back in Los Angeles yesterday after her quick trip to NYC at the end of last week. She ducked into her car sporting an OmniPeace hat and a smile to go with those perfect arms. The cause she supported with her headwear is close to her heart, though I can't help but remember the time she and John Mayer went public at an event for the same organization. While her ex appears to be more into his love affair with the media than the hot actress, apparently he's experiencing a lack of paparazzi interest since the breakup. Doesn't look like the same thing can be said for gorgeous Miss Aniston — plus, maybe he's not so worth being into anyway.

Flynet