January Jones
Luiz Martinez / Broadimage

What compelled January Jones to try pink hair? “It’s just my time to do something different and fun,” the actress told InStyle.com of her brand new look at the fifth season premiere of Mad Men in Los Angeles last night. Jones had originally requested sunnier highlights, but chose the pastel hue at her colorist’s suggestion. “It sounded fun,” she explained. “We decided that they are rose gold highlights. Class it up a bit. I’m on hiatus so I can do what I want to it.” So, will the color stay? “It’s permanent for now,” she said, “until I take it out.” Tell us: Would you try pink?

See more hair makeovers in the gallery!

New Hairstyles 2012!

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— Andrea Simpson