Saturday marks Michelle Obama's 51st birthday! In addition to her unwavering charm and impeccable sense of style, the FLOTUS also happens to be a pretty great dancer - and Best of all, she doesn't shy away from showing off her funny, fancy Moves during her many appearances. Whether she's busting out the Dougie with a group of students while promoting her Let's Move campaign or celebrating "the history of mom dancing" with Jimmy Fallon, Michelle always seems up for a good time - and always for a good cause. In ho**r of Michelle's big day, we've put some of her Best Dance Moves in GIF form. Keep reading to see how the first lady gets down!