The King was joined by his wife Queen Silvia, children, and grandchildren as he waved at crowds gathered outside the Royal Palace in Stockholm on his 79th birthday.
A gala dinner was held at the Royal Palace in Oslo on Tuesday to mark the state visit of Iceland’s President Halla Tómasdóttir and her husband Björn Skúlason.
Harald V - known as Europe's oldest monarch at 87 - hosted Halla Tómasdóttir, 56 and her husband Björn Skúlason, 51, at an opulent evening with their Scandinavian neighbours.
Crown Princess Victoria, 47, was accompanied at the Royal Palace in the Swedish capital by her husband Prince Daniel, 51, and her younger brother Prince Carl Philip.
The royal, 52, looked effortlessly chic in a pant suit as she walked arm in arm with King Philippe, 64, who looked dashing as they took their seats for Thursday's performance.
Prince Carl Philip and Princess Sofia welcomed their fourth child on February 7, with the royal family attending the official announcement of her name yesterday at Royal Palace in Stockholm.