Hilary Duff has really changed her style lately, going from blonde bubblegum pop princess to brunette downtown girl. She’s taken her beloved black leather Michael Kors handbag along for the ride, carrying it to several events. It’s no mystery why: The black leather offers instant “wild child” street cred that’s further bolstered by the addition of metal rings up and down the sides and handles. It’s hip, works with most of the Duffster’s new all-black wardrobe, and has just the ...