12/14/2012 04:11 pm ET

Rachel Roy, Aisha Tyler And Zoe Saldana: The Week's Best Style Moments (PHOTOS)

Sometimes less is more, which is exactly the look fashion designer Rachel Roy opted for while attending the New York City premiere of "Stand Up Guys" on Sunday night. Rachel's classic black turtleneck, camel-colored coat and black pants were both seasonally appropriate and chic.

Aisha Tyler added a bit of punch to the lineup of best-dressed stars this week. "The Talk" co-host looked bright and beautiful in an orange-and-magenta color blocked Kate Spade dress to join Bravo's Andy Cohen for an extra-sassy episode of "Watch What Happens Live" on Thursday night. Aisha helped get things pretty steamy in the studio after playing one of Cohen's silly games, which resulted in actor Shemar Moore getting shirtless and giving a lap dance. Wowzas!

And speaking of hot, actress Zoe Saldana stepped out with her cutie pie boyfriend, Bradley Cooper, in Los Angeles for an event celebrating Cooper's latest movie "Silver Linings Playbook." While some suspect that Zoe might be preggers, there were no signs of a baby bump in the body-hugging, black-and-white dress she wore to the event.

Check out those lovely ladies and more of the week's best style stars, including Beyonce, Alicia Keys and Rihanna in the slideshow below.

The Week's Best Style Moments