Happy 31st Birthday, Nicole Richie! See Her Shocking Transformation (PHOTOS)

Designer, reality star, and mom of two Nicole Richie turns 31 today, September 21, 2012! And even though she’s come a long way from her days on The Simple Life, the Fashion Star judge tells DuJour magazine that she “still has a lot to learn.”

From a Hollywood wild child to an accomplished fashionista, click through our gallery to see Nicole’s shocking transformation through the years!

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