Vote on this week's styles including Jessica Simpson, Paris Hilton and
more stars! You decide – are they fashionistas or flops? By Andrea
DeSimone and Melissa Liebling-Goldberg
The Mad Men star gives a nod to her '60s character at the TV show's second season premiere in a sweet Miu Miu frock, telling PEOPLE "I'm doing kind of a modern-day Betty Draper tonight."