BEST: Jayma Mays hit the Fox Upfront Presentation rocking a figure flattering rainbow cocktail dress with pink accessories.
WORST: Jessica Alba looked more frumpy than fab at the Rimowa Rodeo Drive Store Opening Party, wearing peacock print Lanvin pants with a black top and Salvatore Ferragamo heels.
BEST: Amanda Peet looked super chic at the NBC Upfront Presentation, wearing a Valentino frock with black cutout sandals.
WORST: Zooey Deschanel looked like she was wearing a vintage lampshade at the Fox Upfront Presentation.
BEST: Christina Aguilera rocked a totally chic Dolce & Gabbana polka dot frock with red Christian Louboutin peep-toes to the NBC Upfront.
WORST: Kate Bosworth ruined her spring style with uber clunky kicks.
BEST: Nicole Scherzinger hit the Fox 2011 Upfront looking sexy and sophisticatecdd in a black zip-up dress.
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WORST: Lady looks like a dude! AnnaLynne McCord hit MTV studios, wearing a tie with sexy threads.
BEST: Amber Heard looked incredibly sexy and sophisticated in a black and white retro-feeling frock at the NBC Upfront Presentation.
WORST: My Little Gaga? The Lady hit the streets of London, pairing wacky fashion with a My Little Pony necklace.
PHOTOS: The Best & Worst Fashions Of The Day