Lovebirds Vanessa Hudgens and Zac Efron look adorable together on the blue carpet. Hudgens' strapless mini-dress flatters her shape, and Efron looks sharp as well in his gray vest.

Miley Cyrus' sparkly frock with varying shades of blue looks great on her tiny frame, but the slouchy boots would probably work better with another outfit.

While Chris Brown isn't shy about sporting a pair of bright red pants and matching sneakers, that Wild Wild West bandana around his neck needs to go.

Hot pink is definitely Kristen Bell's color. The Forgetting Sarah Marshall star's high-waisted miniskirt balances out her loose fitting champagne blouse perfectly.

When don't the JoBros look on-point? Kevin chose a classic dark jacket and unbuttoned shirt. Nick deviates from the conventional with his white suit and purple V-neck (complete with pocket square). And Joe gives an old-fashioned look a new twist by ditching the jacket, opting for short sleeves and wearing blinding white tennis shoes.

Blake Lively looks amazing in bright colors, and this one-shoulder purple mini-dress is no exception. The high-waisted belt makes her legs look like they go on for days.

This peach-colored dress with sheer overlay is far too dull of a color for Scarlett Johansson's fair coloring. The only thing that catches the eye is the deep-colored collar.

The tie-dyed, flowing fabric looks really looking stunning on Hayden Panettiere, but its floor-sweeping length is a bit too much.

Tia Mowry's yellow- and gray-striped halter dress is as basic as they come, but her stand-out red heels couldn't have been a better choice.

The jewel-toned coloring of Brittany Snow's floral print dress is fun, but the cockeyed strapless neckline is a no-no.

Leighton Meester and Ed Westwick look like they just rolled out of bed, no? Meester looks a bit more put together with her emerald-green dress, but the scarf and pit-stained shirt on Westwick are fashion don'ts.

Rainn Wilson can get away with a lot on the red carpet, including an untucked button-down beneath a blazer. The shades and sneakers, by far, make the outfit.

Sophia Bush looks gorgeous in this purple, floral empire dress. The strapless neckline and high slit make it only that much sexier.

Summer Glau has the same length problem as Hayden Panettiere. Perhaps she should have went with a different neckline to cover up those tan lines as well.

This white, strapless, tea-length dress probably isn’t the best choice for Kim Kardashian. Her look is very dark and exotic, but coupling that with the white dress and bright-red lipstick makes her look a vampire.

Rachel Bilson's one-shoulder, aqua dress has a very unique silhouette, but if anything, she should have gone with a more vibrant color.

She may be a breathtaking beauty, but this white, draped dress makes Olivia Wilde look more like Cleopatra than an A-list celebrity.

This red and hot-pink halter dress stands out with its bold coloring, but the loose fit and low belt don't do anything to flatter Fergie's figure.