On Michelle Obama?s 55th birthday Barack Obama shared a throwback picture of the two of them. In the photo from early on in their relationship Barack has his arm around Michelle. Along with the photo he wrote: "I knew it way back then and I'm absolutely convinced of it today ? you're one of a kind.? According to Business Insider, the couple recently celebrated their 26th wedding anniversary in October. In her book, Michelle revealed Barack made a terrible first impression and never thought she would marry him.