AceShowbiz -

Princess Charlotte wasn't in a good mood on her last day in Hamburg, Germany. When the royal family was about to enter a helicopter on Friday, July 21, the 2-year-old princess threw a tantrum as she cried and refused to board the aircraft.

The family was walking toward the helicopter when Charlotte suddenly fell down. She looked upset after that and started crying. Kate Middleton tried to console her, and Charlotte eventually agreed to board the helicopter.

After having fun inside the helicopter, Charlotte headed toward the family's private jet and boarded the plane with the help of her father.

Auf Wiedersehen Deutschland! Goodbye Germany! 🇩🇪 pic.twitter.com/6s5MvtBUUM

— Kensington Palace (@KensingtonRoyal) July 21, 2017

Prince George, meanwhile, looked in high spirits after previously looking upset and sleepy when arriving in Berlin. He had a lot of fun while exploring an EC145 helicopter which was the same type as the one William flew with East Anglian Air Ambulance. George couldn't hide his excitement as he was smiling while touring the helicopter in awe. Prince William could be seen adjusting a helmet's straps before helping his son wear it.

Since the 3-year-old prince turns four tomorrow, Kensington Palace has released an adorable official portrait of George in celebration of his upcoming birthday. "The Duke and Duchess are delighted to share a new official portrait of Prince George to mark HRH's 4th birthday tomorrow," it wrote alongside a photo of George smiling widely at the camera. "The photograph was taken at Kensington Palace at the end of June by @ChrisJack_Getty," it added, before thanking everyone for the lovely birthday wishes.

The Duke and Duchess are delighted to share a new official portrait of Prince George to mark HRH's 4th birthday tomorrow 🎈 pic.twitter.com/Fct5iaoEer

— Kensington Palace (@KensingtonRoyal) July 21, 2017