52 photos of America's first lady on her 52nd birthday

Born on January 17, 1964, in Chicago, Michelle LaVaughn Robinson Obama made history by serving as the first African-American first lady in US history.

As first lady, Michelle Obama has created initiatives promoting education and healthy living. She's known for her no-nonsense attitude - as well as her impeccable fashion sense.

In honor of her birthday, we've compiled 52 photos of one of America's coolest first ladies.