PHOTOS: The Best & Worst Dressed Stars Of The Day

1. WORST: Snooki sported a rather dramatic pouf, wearing an uber-embellished floral mini dress to Live! With Regis and Kelly in NYC.

2. BEST: Hayden Panettiere looked red hot in ruffles at a pre Oscar party at the Chateau Marmont in Los Angeles, rocking sleek Christian Dior booties.

3. WORST: Snooki sported a rather dramatic pouf, wearing an uber-embellished floral mini dress to Live! With Regis and Kelly in NYC.

4. BEST: LaLa Vasquez jazzed up a sexy black suit with cobalt blue Christian Louboutins, leaving her hotel in NYC.

5. BEST: Zoe Saldana rocked casual threads like couture, while out and about in Los Angeles.

6. BEST: Jennifer Aniston arrived back to LAX from her Just Go With It European promotional tour, wearing a camel coat with dark denim and brown boots.

7. WORST: Drew Barrymore sported contrasting trends, which just didn’t mesh well together, while showing off her new beau in Los Angeles.

8. BEST: Jenna Fischer hit the world premiere of Hall Pass rocking a sweet and sparkly cocktail dress with peep-toe heels.

9. WORST: We know Christina Applegate is a new mom and all, but couldn’t she try a little harder than this tunic and leggings combo for the world premiere of Hall Pass?

10. BEST: Emmy Rossum looked ready for spring, rocking a head to toe look from the Christian Dior Spring 2011 collection to a pre-Oscar bash at the Chateau Marmont. Her blue patterned halter looked fab with strappy wedges and a simple black clutch.

11. BEST: Lily Collins rocked a color happy floral cocktail dress to a pre-Oscar party at the Chateau Marmont, finishing the look off with metallic sandals.

12. BEST: Alyssa Milano debuted her baby bump at the world premiere of Hall Pass in sophisticated style.

13. BEST: Sarah Hyland looked adorable in a What Goes Around Comes Around t-shirt, skinny jeans and a motorcycle jacket at the world premiere of Hall Pass.

14. WORST: Izabella Miko sported some not-so-awesome accessories with her uber-lowcut red dress at Global Green USA’s 8th Annual Pre-Oscar Party.

15. BEST: Kate Bosworth drenched her fabulous figure in a chambray mom dress and oversized wool coat, while out and about in London.

16. WORST: Talk about over-coat! Jennifer Love Hewitt was clad in unflattering fashion in Los Angeles.

17. WORST: Alexa Chung headed to outer space in a Christopher Kane Shockwaves NME Awards 2011 in London.

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18. WORST: When the wild west meets Studio 54 Juliette Lewis hit the Shockwaves NME Awards in London, dressed in freakish fashion.

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19. WORST: Elle Macpherson experienced a fashion faux pas in Sydney, wearing a sheer cutout dress over leggings with bright red booties.

20. BEST: Holly Madison was a golden girl at a Sin City event.

21. BEST: Audrina Patridge looked casually chic on the streets of Los Angeles.

22. BEST: Rosie Huntington-Whiteley looked chic on the streets, wearing tight, khaki pants with a thermal sweater, ballet flats and a fedora, heading into a medical center in Los Angeles.