July 21 (UPI) -- Kensington Palace on Friday released a new portrait of Britain's Prince George to celebrate the young royal's fourth birthday this weekend.
The royal household posted the photo of a smiling Prince George wearing a blue-and-white striped shirt on Twitter.
"The Duke and Duchess are delighted to share a new official portrait of Prince George to mark [his royal highness'] 4th birthday tomorrow," the tweet said.
Royal photographer Chris Jackson took the portrait at the end of June prior to the royal family's trip to Poland and Germany.
"He is such a happy little boy and certainly injects some fun into a photoshoot."
Prince George Alexander Louis' fourth birthday is Saturday.