Whether it's her Ziggy Stardust-like bouffant from last night's SAG Awards or pink streaks highlighting her blond mane, January Jones clearly likes to take risks and change things up. She has tried on practically every hair color, which keeps things exciting, but it does have its consequences.

"I have been every color and now my hair is falling out in clumps," she told Grazia Daily at the Sundance Film Festival. "I’ve been blonde, red with extensions for this film, then blonde, then black, and now blonde again. I’m going to have to shave it off and wear a wig."

She prefers to be blonde and pointed out that's how her son, Xander, recognizes her in photos. But the biggest change she ever felt was when she went dark for a few months. "I was suddenly invisible," January said. "Not just as a celebrity, but to my friends and family."