Elisabeth Moss, who plays Peggy Olson, looked anything but dowdy in a low-cut little black dress and peep-toe heels. January Jones (Betty Draper) wore a simple blue and white sleeveless dress, while Jessica Pare (Megan Draper) made a statement in a vibrant, blue and pink floral gown.
The new season of "Mad Men" kicks off Sunday, April 7 at 9 p.m. ET with a two-hour premiere. The following week, the series will return to its regular timeslot at 10 p.m. ET with an episode directed by lead actor Jon Hamm (Don Draper).
According to E! News, fans can expect: "A wedding, two deaths, Megan rocking several colorful bikinis, a dramatic physical transformation from Betty, and one character dropping an F-bomb." Sounds scintillating!
Check out more photos from the premiere...