January Jones

January Jones on "Mad Men" (left), and the "X-Men" character she'll play (right). Photos: AMC | Marvel/Splash News

Looks like January Jones has changed her taste in "Men."

The "Mad Men" actress has just signed on to play telepathic comic book vixen Emma Frost in the upcoming film "X-Men Origins: First Class," Variety reports.

And something tells us she won't be bringing Betty Draper's pastel shifts and headbands along for the ride.

In the comic books, Emma Frost is drawn as a blonde bombshell wearing a sexy choker, corset-style crop top with lots of cleavage, and painted-on pants. Even Joan Harris would raise an eyebrow.

Then again, Jones does have a knack for playing icy blondes...

The movie will also star Zoe Kravitz, James McAvoy, Rose Byrne, and Kevin Bacon, Variety reports.

Sounds... super.

Meanwhile, see how "Mad Men" is changing women's taste in underwear.