Elisabeth Moss attends the "For A Good Time, Call..." Premiere on August 21, 2012 in New York City. Credit: Jason Kempin/Getty

Peggy pulled a Miley!

On Tuesday, Mad Man star Elisabeth Moss hit the red carpet in NYC at the premiere of For a Good Time, Call. But the Emmy-nominated star, 30, barely looked like herself, thanks to a drastic new hairdo: Moss chopped off her normally chin-length, brunette locks into a short -- and very blonde -- new 'do.

For her big makeover reveal, Moss wore a sexy, form-fitting black lace dress and nude heels. See more photos of Elisabeth Moss' makeover.

"I wanted to do something really different," Moss told Us Weekly on the Grey Goose-hosted red carpet. And, as the saying goes, Moss joked that, "so far," she's having more fun as a blonde -- even if Moss still can't go incognito. "People still recognize me because I always looked so different from Peggy before," she said. 

Moss' future on Mad Men was very briefly in question among fans of the acclaimed AMC series shortly before the season five finale -- when her character, copy chief Peggy Olsen, left the advertising firm of Sterling, Cooper, Draper, Pryce. But Moss -- who divorced Saturday Night Life's Fred Armisen in 2010 -- has signed on for two more seasons of the smash.

"It will be the same Peggy we all know and love!" she teased.

Tell Us: What do you think of Moss' new look?