Fab or flop: Rihanna, Beyonce, and more of this week's best and worst celeb style

Fab or Flop 8.22
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Fab or flop: Rihanna, Beyonce, and more of this week's best and worst celeb style
Maria Menounos glowed in a gorgeous red dress and perfect understated makeup.
Rihanna may have been going for a low-key look, but her cropped hoodie made her stand out in all the wrong ways.
Chrissy Teigen may had looked a little too casual for the red carpet, but we're still in love with her outfit! Short shorts, an oversized tank, and knee-high leather boots make up the perfect casual summer look.
Emma Watson usually has a 100% pass rate when it comes to flawless street style, but this baggy sweater over her dress had us confused. We'll give the gorgeous starlet a pass since the look is simply transitional. We know she'd never walk down the carpet looking anything less than perfect.
Seriously, no matter what length Beyonce's hair is, she always manages to look amazing.
Maybe Lady Gaga didn't get the memo that it's August in NYC (read: humidity, humidity, humidity), but her furry sweater get-up and baggy pants look the complete opposite of comfortable.
Kris Jenner rocked all red as she flashed her signature smile earlier this week.
We recommend that Fergie turn to new celeb mommies Kim Kardashian and Kate Middleton for some red carpet style advice.
Top Chef host Padma Lakshmi stepped out looking casual cool in NYC this week, matching a plain v-neck white tee with navy blue shorts.
Cassie attended her birthday party in a tied up white dress with matching slouchy white leather jacket.
Kristin Cavallari looked gorgeous in a cropped white top and a flowy white mini skirt. The reality star's blue heels gave her outfit a fab pop of color.

Celebs are fickle fashion creatures. Some weeks they look like a million bucks, and other times you're wondering if they got dressed in the dark. As celebs hit the red carpet, stepped out for lunch, and attended the hottest parties, we were there every step of the way, tracking the best and worst of this week's celeb style!

Plenty of celebs, like Kristin Cavallari and Beyonce looked absolutely fab this week, while others like Rihanna and Fergie turned out to be total flops.

Click through the gallery above to check out the best and worst of this week's celebrity style and find out who's Fab and who's a Flop!
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