As First Lady of the United States of America - the first African-American to serve in that role - she helped create the most welcoming and inclusive White House in history, while also establishing herself as a powerful advocate for women and girls in the U.S. and around the world. She dramatically changed the ways that families pursue healthier and more active lives, and stood with her husband as he led America through some of its most harrowing moments. Along the way, she showed us a few dance moves, crushed Carpool Karaoke, and raised two down-to-earth daughters under an unforgiving media glare.