BEST: Emma Roberts looked like a princess in a Temperley London strapless gown and Casadei pumps at a NYC screening of The Art of Getting By.
WORST: Carey Mulligan looked washed out at the Junior Spring Benefit for Lincoln Center, wearing a laser cut Valentino dress with brown YSL Trib Too pumps.
BEST: Naomi Watts looked super chic in a Stella McCartney ensemble at the designer’s Resort 2012 presentation in NYC.
WORST: Lucy Liu wore an unflattering plaid Vivienne Westwood frock with H. Stern bling and Sergio Rossi heels to the Sydney premiere of Kung Fu Panda II.
BEST: Liv Tyler rocked a bold, blue and white Stella McCartney shift to the designer’s Resort 2012 presentation in NYC.
WORST: Lady Gaga made sure to stand out in a crown, wearing clashing fashion in Paris.
BEST: Blake Lively flaunted her superior stems in a Marc Jacobs ensemble at the 2011 Ghetto Film School Spring Benefit, pairing the black mini skirt and floral top with sequined Christian Louboutin heels.
WORST: Fashion designer Donna Karan experienced a blunder, wearing an unflattering frock to the 8th Wayuu Taya Foundation Gala.
BEST: Cameron Diaz rocked a leggy look to the Bad Teacher photocall in Madrid, pairing an Equipment romper with a red tweed Elizabeth and James blazer, finishing the look off with a red Chanel belt and Sergio Rossi heels.
WORST: Taylor Momsen forgot her pants again while out in London.
PHOTOS: The Best And Worst Fashions Of The Day