We adored Elisabeth Moss as the lovable Zoey Bartlet on "The West Wing" and now can't get enough of her as the strong and sexy secretary-turned-copywriter Peggy Olson on the hit show "Mad Men."

While you anxiously await the 2-hour premiere of "Mad Men" Season 5 (Sunday, March 25 at 9/8c on AMC), here's a look back at the TV star's stunning style through the years.

Watch it above!