The Best-Dressed Celebs This Week: 11/15/13

From Naomie Harris in Valentino to Nicole Richie in Alberta Ferreti, these stylish stars shut it down on-and-off the red carpet this week!

Stripes on stripes on stripes! Nicole Richie a a bright ray of stylish sunshine at the 2nd Annual Baby2Baby Gala in an Alberta Ferretti white crop top with floral embroidery and multi-color skirt from the Spring 2014 Collection.

Zoe Saldana in a patchwork ivory dress: refreshing, well fitted, and fun!

Shay Mitchell rocked Isabel Marant's coveted jacket for H&M at the store's party for the designer collab.

As the face of their newest fragrance (have you seen the hot commercial with Matthew McConaughey ?!), it's only fitting Scarlett Johansson wore Dolce&Gabbana to the Her Premiere during the 8th Rome Film Festival.

Posh striking a pose in a LBD (long black dress).

Hilary Rhoda in this pink cut-out Rachel Roy wool crepe gown though... #ThatBodyToo

Little Miss Dior, Natalie Portman, stunned in a sparkly crop top and high-waisted black pant moment.

Forget The Hunger Games, the new girl on fire is Jaimie Alexander! Here she is in a purple Pamella Roland dress on The Tonight Show with Jay Leno.

Downton Abbey star Michelle Dockery rocked a faux-leather-and-lace Erdem dress with feather appliqués to the dinner for the designer she hosted. Dark, romantic, and totally on trend. We dig it.

Living for Naomie Harris in this patterned Valentino dress with sheer panels at the Mandela: Long Walk To Freedom New York premiere. Also living for her abs.