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Michelle Obama delivers a commencement address for the Quantico Middle/High School in Quantico, Va., June 3, 2011.

Photo by: (AP Photo/Steve Helber)
Michelle Obama delivers a commencement address for the Quantico Middle/High School in Quantico, Va., June 3, 2011.-
First lady Michelle Obama gives a thumbs up to graduates after delivering a commencement address for the Quantico Middle/High School on the Quantico Marine Base in Quantico, Va., June 3, 2011.

First Lady Michelle Obama

January 1, 1970

As the First Lady of the United States, Michelle Obama has become an advocate for healthy eating, veterans and military families, poverty awareness and women's rights. She has also become a fashion icon and has been named by Forbes Magazine as the eighth most powerful woman in the world.