What happened to Marissa Cooper? Girl looks so much more, er, developed now!

Mischa Barton has been on a downward spiral in the looks department lately, but perhaps she's trying to change for the better. We spotted the former O.C. starlet running errands in Santa Monica today, first stopping at the DMV (to renew her driver's license) and then shopping for health food! Hopefully she's on a new diet plan? Those pants are preeeeetty tight.

Now if only she could get a better acting job than playing a hooker on Law & Order!

Uggs aren't the most fashionable footwear, but they sure are comfy! And seeing as I'm sporting a pair right now, I really can't blame Hilary Duff for wanting to keep her toes toasty warm with a pair of the fleecy boots.

Hilary was spotted going shopping in Beverly Hills yesterday, and rather than pulling a Britney or a Jessica Alba, the Duffster fed the meter and went on her way. What a good girl!

Andy Roddick's wife looks just as hot IRL as she does on the cover of Sports Illustrated! Check out Brooklyn being super-cute outside of Letterman in New York.

A regular American beauty!

Spotted: Julia Roberts' niece, Emma (who turns 19 today), signing autographs and smiling for pix at LAX en route to London. We almost wanna see that V-Day movie just for her and that gorgeous grin! Who cares if the movie is sappy and predictable?

It has double the Roberts!

The real-life Gossip Girl couple attended an after party for the HBO screening of How to Make it in America at the Bowery Hotel in NYC last night... blah blah blah, they look cute and all.

But at Maxim's Super Bowl party on Sunday, Page Six reports that Jessica Szohr and Ed Westwick were "making out like crazy." A witness even added: "It looked like they were having sex!"

Hot damn - get a room!

Even with the flood pants, knit booties and down parka, I wouldn't kick Robert Downey Jr. off my doorstep! The actor was photographed enjoying a moment of solitude on the beach in Malibu yesterday, and while he seemed a little pensive at first, we did snap him smiling as he returned to his pad. Aww, maybe he just has a bad case of spring fever?

So where were all the stars who weren't at La Vida partying with Quentin Tarantino last night? Why, 3,000 miles away shmoozing it up at the Bowery Hotel in NYC! We spotted Big Love star Chloe Sevigny, Rachel Zoe, Adrian Grenier, Kate Bosworth and a handful of other famous faces coming and going from the New York hotspot.

Love the glittens K. Dunst!

Lindsay Lohan has been tweeting up a storm about her latest humanitarian effort, and now she's made a quickie video to get the word out for her upcoming charity event.

The actress will take part in Altitude 360's fundraiser for Haiti on February 16th at the River Room, and she says, "I'll be hosting the best party in London, and I want you to come." Hey, we're sure there's plenty of peeps who will show up to this! Party with Lindsay and help Haiti? Sign me up!