THIS is the hilarious moment Prince Louis copies his older brother with a dramatic hair flip – as dad Wills tries not to laugh.

Prince Louis mimicked his older brother, Prince George, during the VE Day parade on Monday.

Prince Louis mimicked his older brother, Prince George, during the VE Day parade on Monday.

As the brothers watched the military procession from the Queen Victoria Memorial in London, George took his fingers and pushed his hair back.

Seconds later, cameras caught the 7-year-old copying the 11-year-old’s mannerisms by moving his hair back with his hand.

Louis then began blowing up at the hair that was across his forehead.

George and his younger brother attended the VE Day parade with their 10-year-old sister, Princess Charlotte, and their parents, Prince William and Kate Middleton.

Seconds later, cameras caught the 7-year-old copying the 11-year-old’s mannerisms by moving his hair back with his hand.

Louis then began blowing up at the hair that was across his forehead.