Her new daughter, Harlow Winter Kate, in her arms and her boyfriend, Joel Madden, by her side, Nicole Richie tells PEOPLE for its new cover story - on newsstands Friday - that when it comes to the changes she's experienced in the six weeks since the baby's arrival, "It's almost like I don't even remember what life was like before her. She gives life a whole new meaning and a whole new purpose."
As for...
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