Royal flashback!
Almost 30 years ago, a then 5-year-oldPrince Harryshowed off his mischievous streak when he covered the mouth of his cousin,Princess Beatrice, then almost 2 years old, during the annual celebration in 1990.
On Saturday, 7-year-old Savannah, whose dad isQueen Elizabeth’s eldest grandchild, Peter Phillips, cheekily put her hand over the future king’s mouth.
“Savannah pretended to conduct as the national anthem was playing, and George joined in the fun,” a royal observer tells PEOPLE. “But when Savannah realized it was probably not what they should be doing, she stopped George, 4, from saying any more.”
Martin Keene - PA Images/Getty Images; Chris Jackson/Getty Images

Martin Keene - PA Images/ Getty Images

Chris Jackson/Getty Images

Prince Harrywas known for pulling this move as a child. The royal, now 33, made a silly face out the car window after a visit to the hospital when his cousin,Princess Beatrice, was born in 1988.
Andrew Milligan - WPA/Getty Images; Daily Mirror/Mirrorpix/Getty Images

Harry showed off his tongue again for the cameras when he arrived at a school nativity play with his mother, Princess Diana. Upon noticing photographers, he started to make a funny face out the car window before Diana picked him up to bring him out of the vehicle.
source: people.com