BEST: Ashley Greene was dressed to thrill at the unveiling of her DKNY Jeans Spring 2012 billboard. The Twilight star rocked a head-to-toe look from DKNY of course!

WORST: Rose McGowan would have scored with her street style, but awkwardly added tan boots to her all-black look.

WORST: Though we understand that Maggie Gyllenhaal is pregnant, she still isn’t allowed to wear pajamas out on the street!

BEST: Pippa Middleton steamed up London in a Zara mini, a Whistles leather jacket, black boots on a luxe Loewe bag.

WORST: Tara Reid hasn’t gotten the memo that this look went out of style back when American Pie first debuted on the big screen!

BEST: Nicole Richie jazzed up her black and white ensemble with a snazzy pair of Christian Louboutin heels, a great Givenchy bag and a black and yellow scarf.

WORST: Brenda Song punchy poncho was a little too in-your-face.

BEST: Zoe Deschanel opted for an angelic white bubble dress and simple black shoes for The X Factor in Los Angeles.

WORST: Whitney Port experiences yet another fashionista flop.

BEST: Rosie Huntington-Whiteley looked chic on the streets of Los Angeles, wearing cuffed denim with a cropped blazer, Rag & Bone boots, a Chanel bag and Ray Ban shades.