Former first lady Michelle Obama turns a year older today (January 17) and celebrating it louder than anyone was husband Barack Obama. Barack Obama, apart from being the favorite American president of all time for most of us, is also known for his heartfelt posts on social media every time there's a special occasion. As Michelle turned 56, he just upped his game further. Wishing his wife a happy birthday, he shared an adorable collage of pictures of the two of them across his social media accounts.