Royals, they're just like us. Or at least they dress like us for their Christmas card. In perhaps their most casual Christmas photo op yet, Prince William and Princess Kate, both 40, donned regular 'ol jeans and button-downs while posing with their kids: Prince George, 9; Princess Charlotte, 7; and Prince Louis, 4. The children also kept it casual, each wearing blue shorts. George and Louis donned collared, short-sleeve shirts, while Charlotte wore a light blue blouse. Each member of the smiling family of five also wore sneakers while walking hand-in-hand down an outdoor path. William and Kate flank their children on both sides in the image. The couple's annual Christmas card has become a holiday tradition for royal family fans. 📷: Matt Porteous, AP