Britain's Prince William and Catherine, The Duchess of Cambridge, pose for a picture with Crown Prince Haakon and Crown Princess Mette-Marit, and King Harald and Queen Sonja of Norway before a lunch in Oslo, Norway. Hannah McKay / Reuters
Britain's Prince William and Catherine, the Duchess of Cambridge, pose for a picture with Queen Sonja, Princess Ingrid Alexandra, Crown Princess Mette-Marit, and Crown Prince Haakon of Norway in Princess Ingrid Alexandra Sculpture Park in Oslo, Norway. Reuters
Britain's Kate Duchess of Cambridge is greeted by spectators in front of the Norwegian Royal Palace in Oslo, Norway. Cornelius Poppe / NTB scanpix via AP
From left: Crown Princess Mette-Marit of Norway, Prince William, Duke of Cambridge, Crown Prince Haakon and Catherine, Duchess of Cambridge visit the Princess Ingrid Alexandra Sculpture Park in Oslo, Norway. Chris Jackson / Getty Images
Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, visit the Princess Ingrid Alexandra Sculpture Park in Oslo, Norway. Chris Jackson / Getty Images
Britain's Prince William and Katherine, the Duchess of Cambridge, arrive by private jet at Gardermoen Airport in Oslo, Norway. Hannah McKay / Reuters
Catherine, Duchess of Cambridge's hairdresser Amanda Cook Tucker, centre, and stylist Natasha Archer, right, arrive to Oslo Gardermoen Airport in Oslo, Norway. Chris Jackson / Getty Images
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge are greeted by Crown Prince Haakon and Crown Princess Mette-Marit of Norway. Chris Jackson / Getty Images
Britain's Catherine, Duchess of Cambridge, left, and Prince William, Duke of Cambridge wave as they arrive at Gardermoen Air Force Base north of Oslo. Cornelius POPPE / AFP
From left: Crown Prince Haakon, Catherine, Duchess of Cambridge, Queen Sonja of Norway, Crown Princess Mette-Marit of Norway, Prince William, Duke of Cambridge and Princess Ingrid Alexandra of Norway exit the Royal Palace. Chris Jackson / Getty Images
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge exit the Royal Palace. Chris Jackson / Getty Images
From left: Crown Princess Mette-Marit of Norway, Crown Prince Haakon, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Queen Sonja of Norway and Princess Ingrid Alexandra of Norway. Chris Jackson / Getty Images
Britain's Prince William and his wife Kate, Duchess of Cambridge, left, pose for the media with Norway's King Harald, and Queen Sonja, at The Royal Palace in Oslo, Norway. Vidar Ruud / NTB Scanpix via AP
Britain's Prince William and Catherine, The Duchess of Cambridge, pose for a picture with Crown Prince Haakon and Crown Princess Mette-Marit, and King Harald and Queen Sonja of Norway before a lunch in Oslo, Norway. Hannah McKay / Reuters
Britain's Prince William and Catherine, the Duchess of Cambridge, pose for a picture with Queen Sonja, Princess Ingrid Alexandra, Crown Princess Mette-Marit, and Crown Prince Haakon of Norway in Princess Ingrid Alexandra Sculpture Park in Oslo, Norway. Reuters
Britain's Kate Duchess of Cambridge is greeted by spectators in front of the Norwegian Royal Palace in Oslo, Norway. Cornelius Poppe / NTB scanpix via AP
From left: Crown Princess Mette-Marit of Norway, Prince William, Duke of Cambridge, Crown Prince Haakon and Catherine, Duchess of Cambridge visit the Princess Ingrid Alexandra Sculpture Park in Oslo, Norway. Chris Jackson / Getty Images
Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, visit the Princess Ingrid Alexandra Sculpture Park in Oslo, Norway. Chris Jackson / Getty Images
Britain's Prince William and Katherine, the Duchess of Cambridge, arrive by private jet at Gardermoen Airport in Oslo, Norway. Hannah McKay / Reuters
Catherine, Duchess of Cambridge's hairdresser Amanda Cook Tucker, centre, and stylist Natasha Archer, right, arrive to Oslo Gardermoen Airport in Oslo, Norway. Chris Jackson / Getty Images
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge are greeted by Crown Prince Haakon and Crown Princess Mette-Marit of Norway. Chris Jackson / Getty Images
Britain's Catherine, Duchess of Cambridge, left, and Prince William, Duke of Cambridge wave as they arrive at Gardermoen Air Force Base north of Oslo. Cornelius POPPE / AFP
From left: Crown Prince Haakon, Catherine, Duchess of Cambridge, Queen Sonja of Norway, Crown Princess Mette-Marit of Norway, Prince William, Duke of Cambridge and Princess Ingrid Alexandra of Norway exit the Royal Palace. Chris Jackson / Getty Images
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge exit the Royal Palace. Chris Jackson / Getty Images
From left: Crown Princess Mette-Marit of Norway, Crown Prince Haakon, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Queen Sonja of Norway and Princess Ingrid Alexandra of Norway. Chris Jackson / Getty Images
Britain's Prince William and his wife Kate, Duchess of Cambridge, left, pose for the media with Norway's King Harald, and Queen Sonja, at The Royal Palace in Oslo, Norway. Vidar Ruud / NTB Scanpix via AP
Britain's Prince William and Catherine, The Duchess of Cambridge, pose for a picture with Crown Prince Haakon and Crown Princess Mette-Marit, and King Harald and Queen Sonja of Norway before a lunch in Oslo, Norway. Hannah McKay / Reuters
