BEST: Malin Akerman looked sexy in a Mandy Coon leather dress paired with Giuseppe Zanotti colorful sandals and a Coach Legacy Penny bag at Coach’s An Evening of Cocktails and Shopping to Benefit The Children’s Defense Fund.

WORST: Demi Lovato definitely grabbed attention in herblinding Topshop dress at the first round of X Factor auditions in Austin Texas, but not in a good way! And to make matters worse, her cat eye makeup was way over the top.

BEST: Britney Spears recovered from her previous X Factor fashion flop, hitting the first round of auditions in Austin, Texas showing off her awesome assets in a skintight Brian Lichtenberg pink dress paired with black YSL heels.

BEST: Kate Bosworth looked classy and cool in Calvin Klein at the brand’s Infinite Loop exhibition in Korea.

WORST: Unless she is hiding a baby bump, Rashida Jonesshouldn’t have been wearing such a tented dress! The Parks & Recreation star donned a strapless Stella McCartney number to The NSPCC Pop Art Ball.

BEST: Nicole Kidman showed off her beautiful back in astunning Lanvin one-strapped gown at the Cannes Film Festival premiere of The Paperboy, finishing off the look with Cartier jewels.

BEST: Heidi Klum dazzled at the Cannes Film Festival premiere of The Paperboy, in a beautifully beaded and fabulously fringed Marchesa gown.

WACKY: Jennifer Lopez experienced a belly-baring blunder on the stage of American Idol, wearing a studded Versace bra top with MC Hammer pants.

WACKY: Solange Knowles looked ridiculous at the 2012 MoMA Party in the Garden, wearing a bizarre floral look from Flaminia Saccucci.

BEST: Jada Pinkett-Smith looked sensational at the Men in Black 3 New York premiere in a sheer Bill Blass gown that featured a plunging neckline.

BEST: Kristen Stewart looked red hot at the CosmopolisCannes Film Festival premiere, wearing a plunging lace-backed Reem Acra gown with Cartier bling.

BEST: Michelle Monaghan showed some skin in a sexy Halston cutout gown at the 40th Annual FiFi Awards in NYC.

BEST: Heidi Klum dazzled at the Cannes Film Festival premiere of The Paperboy, in a beautifully beaded and fabulously fringed Marchesa gown.

WORST: Cameron Diaz wore a strapless white Stella McCartney jumpsuit to the London premiere of What to Expect When You’re Expecting, that failed to flatter her figure.

BEST: Aishwarya Rai flaunted her fabulous post-baby body at the Cosmopolis Cannes Film Festival premiere, wearing an awesomely embroidered Elie Saab gown.

BEST: Love the lattice! Kate Upton glammed up the amfAR Cinema Against Aids Gala at the Cannes Film Festival in a black and blue Louis Vuitton gown.

BEST: Nutrisystem did her body good! Janet Jackson flaunted her slimmed-down figure and boobiful assets at the amfAR Cinema Against Aids Gala at the Cannes Film Festival in a white Emilio Pucci peephole dress.

WORST: Kirsten Dunst experienced a frumpy fashion flop at the amfAR Cinema Against Aids Gala at the Cannes Film Festival, wearing a two-tone Louis Vuitton gown that featured a colorfully embellished belt.

WORST: Kim Kardashian recycled a skintight Emilio Pucci dress that three celebs wore before her, hitting Kanye West’s Cannes Film Festival movie premiere, hideously pairing the number with satin booties.

BEST: Carrie Underwood showed off her superior stems at the finale of American Idol, wearing an embellished Badgley Mischka mini with Jimmy Choo sandals.

WORST: Vanessa Hudgens looked super frumpy in her belly baring ensemble, while lunching with a friend in Los Angeles.

WORST: Amber Rose and Wiz Khalifa weren’t exactly flying high on the fashion front for a day of traveling.

WORST: Forget your pants Miley Cyrus showed off her slimmed down figure at the Billboard Music Awards, leaving little to the imagination by wearing only a Jean Paul Gaultier tuxedo jacket with Christian Louboutin heels and Jacquie Aiche bling. We know that Miley recently dropped lots of weight due to her gluten-free diet and Pilates workout, but she didn’t have to hit a red carpet nearly naked to show off the results!

BEST: Carrie Underwood usually sticks to safe, metallic a la mode, so we were pleasantly surprised to see her step out of her comfort zone at the Billboard Music Awards in totally dramatic fashion. The country darling dazzled in a princess-worthy Oscar de la Renta frothy gown, which she paired with silver peep-toes, a jeweled clutch and Johnathon Arndt jewels.

WACKY: Dancing with the Stars pro Lacey Schwimmer looked like she got her style inspiration from My Little Pony and Snooki at the Billboard Music Awards, looking too-tan in a sliver of a dress, which was made worse with the addition of her multi-colored hair and manicure.