Hilary Duff was spotted leaving a pilates class on Friday, January 20. The 24-year-old looked happy as she was photographed waving and smiling for the cameras. Something different about the mom-to-be? She has changed her hair color to a darker brown.

Hilary had tweeted this photo above yesterday and talked about being bored, "Got bored today.... Tell me whatcha think??"

So which color do you think Hilary looks better - brown or blonde? We love it both ways! Beautiful!!!!

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