BEST: Teresa Palmer looked white hot in a short-trained Cushnie et Ochs mini dress at the Paris premiere of I Am Number Four.

WORST: Kate Moss was dressed for St. Patrick’s Day, wearing a neon green
dress with a huge fur coat. Her silver eye shadow paired with bright pink
lipstick made the bad look worse.

BEST: Justin Bieber’s gal pal Selena Gomez sizzled on The Late Show with
David Letterman, wearing a to-die-for Emilio Pucci mini. The lace sleeved
and leather accented mini dress clung to her curves in the most divine way
possible, while her zipper adorned heels scored her a flawless finish.

BEST: Kristen Wiig ravished at the Los Angeles premiere of Paul, wearing a
flirty Stella McCartney Wrap dress with Roseark jewels and Rene Caovilla
heels.

WACKY: Over in NYC, Mary-Kate Olsen tried to go undercover, bundling up in granny getup! The pint-sized twin was wrapped up in a shawl, wearing a
furry leopard hat on her head.

WORST: Christina Aguilera was a little too spray-tanned to pull off her
bright red Dolce & Gabbana mini at the press conference for NBC’s The Voice.

WORST: Katie Holmes looked adorable in her Lanvin wrap skirt, but the added fur stole resulted in a fashion flop.

BEST: Alicia Silverstone looked adorable in her Rebecca Taylor maternity a
la mode and Aldo heels, singing copies of her new cookbook The Kind Diet in Los Angeles.

BEST: Reese Witherspoon did a little shoe shopping in West Hollywood,
dressed in a fabulous floral frock and gladiator sandals.

BEST: If purple is Justin Bieber’s trademark shade, then scarlet red is quickly becoming his galpal Selena Gomez’s! The Disney star ravished on the red carpet at the Disney Kids and Family Upfronts in NYC, rocking a sexy Dolce & Gabbana mini with Brian Atwood Donna heels. Later in the day, Selena hit MTV-7 looking sophisticatedly sexy in a Matthew Williamson bustier and Giuseppe Zanotti bowed heels with a form-fitting black suit.

BEST: Tyra Banks brought her supermodel style to MTV-7, jazzing up her black jumpsuit with color-happy heels and a belt.

BEST: Kristen Bell sparkled in a sexy SEA NY mini dress and Brian Atwood
Maniac heels at The Alzheimer’s Association’s 19th Annual A Night At Sardi’s in Beverly Hills.

WORST: Paris Hilton committed a fashion fur pas in Los Angeles. The
gorgeous heiress wore a body-drenching floral frock with a fur-trimmed
cardigan, snaky purse and hippie dippy headgear.

WORST: Lily Allen was dressed in clashing (and creepy) fashion, while out
and about in London, wearing a furry snake print coat with a
bandana-inspired paisley skirt.

WORST: Thandie Newton experienced a bun blunder at a Louis Vuitton bash in London, wearing a bright floral frock from the brand’s latest collection.

BEST: Grace Potter upped the glam factor at The Alzheimer’s Association’s 19th Annual A Night At Sardi’s in Beverly Hills, wearing a sheer paneled and
elaborately embellished gown, which featured a super high slit.

WORST: Olivia Munn’s pleated skirt and cropped shearling jacket did nothing to flatter her figure‹and not even thigh high Christian Louboutin boots couldn’t save her from a fashion disaster.

WORST: Pink sported her plaid PJs for a stroll around Malibu.

BEST: Elisabeth Moss hit the 2011 Olivier Awards in London looking Grecian
gorgeous! Draping her bod in a nude Roksanda Ilincic gown, the Mad Men
star, who is currently starring alongside Keira Knightley in The Children’s
Hour play, finished the look off with a metallic Jimmy Choo clutch.

WACKY: Steven Tyler hit the American Idol PaleyFest dressed to shock (not rock) in tacky and wacky threads. Wearing leopard bell bottom jeans with a nude leather jacket, brown boots and a long scarf, the Aerosmith frontman looked just a tad worse than fellow judge Randy Jackson, who paired a psychedelic neon scarf with a black leather biker jacket, jeans and metallic cowboy boots.

BEST: Claire Danes showed off her hot body in Yigal Azrouel houndstooth at the MCC Theater’s 25th Anniversary Musical Gala Miscast.

BEST: At the 2011 School of American Ballet Winter Ball in NYC Michelle
Trachtenberg looked marvelous in a lilac embroidered Marchesa gown, which she paired with a clutch from the same collection and David Yurman earrings.

BEST: Kelly Rutherford glammed up for the 2011 School of American Ballet
Winter Ball in NYC, wearing a gorgeously embellished Robin Brouillette
one-shoulder gown.

WORST: Naya Rivera skintight men’s wear inspired getup at PaleyFest did not do the beautiful star justice, but we loved her bright turquoise Giuseppe Zanotti platforms.

WORST: Serena Williams prowled into dinner with Kelly Rowland, wearing a
bra-baring, sheer catsuit.

BEST: Ciara looked super sexy in a lace sleeved mini dress and Christian
Louboutins, arriving for dinner with Kim Kardashian and Lala Vasquez at STK in Hollywood.

BEST: Elle MacPherson hit the streets of London like the catwalk, wearing
acid wash motorcycle leggings with a grey cashmere sweater and Christian
Louboutin Lucifer heels.

BEST: Holly Madison looked Saint Patrick’s Day sexy in Herve Leger by Max Azria at O’Sheas Casino in Las Vegas.

WORST: Taylor Momsen looked grotesquely goth for a show in Virgina.

BEST: Nicole Scherzinger was dressed to thrill in Paris rocking a Burberry Prorsum lace dress with nude suede heels.

WACKY: We love Pharrell’s Dolce & Gabbana tuxedo at the brand’s Martini Gold Gala at the Italian Embassy in Moscow, but that fur coat is a little over the top.

BEST: Katy Perry paid a visit to BBC Radio in London, dressed to impress in a sassy silver Matthew Williamson dress. The sleek and chic mini featured a gorgeously embellished neckline, and hugged her curves to perfection. She finished off the look with bright yellow Charlotte Olympia heels and a silver cuff bracelet, scoring best dressed status.