BEST: Kelly Osbourne is having fun flaunting her new and improved figure! The reality show star and rock royalty looking glam in a Christian Dior sweetheart strapless mini.

BEST: Miley Cyrus was sweetly styled in a chiffon strapless Marchesa Spring 2011 mini, which featured a gorgeous and beyond-long train.

BEST: Miley Cyrus was sweetly styled in a chiffon strapless Marchesa Spring 2011 mini, which featured a gorgeous and beyond-long train.

BEST: Julie Benz looks glam in her one shoulder dress with Chanel belt.

WORST: Did Avril Lavigne get her dress at Hot Topic?

BEST: Whitney Port, who was on the red carpet interviewing celebs, rocked a flirty print, one-shouldered mini with grey heels.

BEST: Rihanna got glam in a cabernet colored lace Elie Saab sleeved gown, which perfectly matched her fiery ‘do.

WORST: Heidi Klum failed to impress in a black and red lace number, which felt a little too sophisticated for the show.

WORST: Fergie was in football-inspired fashion, wearing a sequin mini, which featured bizarre feathered shoulder accents.

BEST: Taylor Swift looked sleek and sexy in a sparkly, skintight mini and Jimmy Choo heels.

BEST: Jenny McCarthy dazzled in a sequin Stella McCartney.

WACKY: Nicki Minaj looked quite eccentric in a colorful dress from Indian designer Manish Arora.

BEST: Katy Perry looked pretty in pink, wearing a Badgley Mischka strapless sequin dress

WORST: Jada Pinkett Smith wore a copper colored mess of a dress, which featured a gold plated bra.

WACKY: Ke$ha (with a totally awful Mohawk) constructed her awkward ensemble out VHS tape.

BEST: Mandy Moore showed off her luscious legs in a hautely hued sleeved mini.

BEST: Kerry Hilson rocked a body-hugging black mini, which featured a sassy cutout back.

WORST: Julianne Hough wore a totally tacky embroidered strapless gown, which featured a sheer skirt.

BEST: Pink was dressed in maternal a la mode, wearing a simple black chiffon gown.

WORST: Fashion victim Phoebe Price was at it again, wearing a fugly dress with feathers on her head.

WORST: Um, what was Christina Milian thinking when she stepped out in this lace and sequin mini dress?

WORST: Johnny Weir(d) skates onto the Worst Dressed list once again.

BEST: Karina Smirnoff got gowned in metallic a la mode, rocking a fabulous one-shoulder black and silver number.

BEST: Jessica Alba kept her look simple and sexy, wearing a one-shoulder LBD with sassy heels.