Shush! Prince George is hushed by cousin in viral moment at Trooping the Colour

Prince George the troublemaker! 

Savannah Phillips, the Queen's great-granddaughter, slapped a hand over her 4-year-old cousin's mouth to keep him quiet in a hilarious moment at the annual Trooping the Colour that's now going viral.

You can watch the priceless moment here:

Prince George couldn't contain his excitement as he watched planes for the Royal Air Force fly by during his great-grandmother Queen Elizabeth's 92nd birthday celebration. Savannah, the daughter of Peter Phillips and granddaughter of Princess Anne, clearly wasn't amused and made a shushing motion at George.

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Royal children at the 2018 Trooping the Colour
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Royal children at the 2018 Trooping the Colour
LONDON, ENGLAND - JUNE 09: Meghan, Duchess of Sussex, Prince Charles, Prince of Wales, Prince Harry, Duke of Sussex, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Princess Charlotte of Cambridge, Savannah Phillips, Prince George of Cambridge and Isla Phillips watch the flypast on the balcony of Buckingham Palace during Trooping The Colour on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
(left to right) The Duke and Duchess of Cambridge with Princess Charlotte (bottom right) and Prince George, on the balcony of Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
(left to right) The Princess Royal, Princess Beatrice, Lady Louis Windsor, Duke of York, Duchess of Cornwall, Queen Elizabeth II, Duchess of Sussex, Prince of Wales, Duke and Duchess of Sussex, the Duke and Duchess of Cambridge with Princess Charlotte, Savannah Phillips and Prince George, on the balcony of Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
(left to right) Queen Elizabeth II, Duchess of Sussex, Prince of Wales, Duke of Sussex and the Duke and Duchess of Cambridge with Princess Charlotte, Savannah Phillips and Prince George, on the balcony of Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge, Savannah Phillips and Prince George of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Prince George of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge and Savannah Phillips during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Prince George of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Prince George of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge and Savannah Phillips during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge during Trooping The Colour 2018 on June 9, 2018 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
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While the 7-year-old royal wasn't having it with her cousin's antics, we really can't blame George for getting excited about the planes pass by. The photos, which you can check out in the slideshow below, are pretty spectacular. 

Though this moment at the annual Trooping the Colour was pretty memorable, George's mom Duchess Kate also stole the show with her Alexander McQueen number, while his aunt Meghan Markle dazzled in a Carolina Herrera look. For more on the Trooping the Colour, watch the video above. 

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2018 Trooping the Colour ceremony
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2018 Trooping the Colour ceremony
LONDON, ENGLAND - JUNE 09: Queen Elizabeth II smiles at Prince William, Duke of Cambridge during Trooping The Colour ceremony at The Royal Horseguards on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - JUNE 09: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex during Trooping The Colour on the Mall on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JUNE 09: Queen Elizabeth II during Trooping The Colour ceremony at The Royal Horseguards on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - JUNE 09: Atmosphere at Trooping The Colour 2018 at The Royal Horseguards on June 9, 2018 in London, England. (Photo by Mike Marsland/WireImage)
LONDON, ENGLAND - JUNE 09: Lady Louise Windsor during Trooping The Colour on the Mall on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JUNE 09: Queen Elizabeth II leaves Buckingham palace during Trooping The Colour on the Mall on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
The Countess of Wessex (hidden) and Princess Eugenie leave Buckingham Palace, central London on their way to Horse Guards Parade, ahead of the Trooping the Colour ceremony, as Queen Elizabeth II celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
Queen Elizabeth II, waves to the crowds as she in rides in a carriage as it makes its way up The Mall from Buckingham Palace, central London to Horse Guards Parade, ahead of the Trooping the Colour ceremony, to celebrate her official birthday. (Photo by Kirsty O'Connor/PA Images via Getty Images)
LONDON, ENGLAND - JUNE 09: Atmosphere at Trooping The Colour 2018 at The Royal Horseguards on June 9, 2018 in London, England. (Photo by Mike Marsland/WireImage)
LONDON, ENGLAND - JUNE 09: Members of the queen's personal troops, the Household Division during Trooping The Colour ceremony at The Royal Horseguards on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - JUNE 09: Prince Charles, Prince of Wales, Prince William, Duke of Cambridge, Prince Andrew, Duke of York and Princess Anne, Princess Royal arrive at The Royal Horseguards during Trooping The Colour ceremony on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - JUNE 09: Coldstream Guards soldier Charanpreet Singh Lall the first to wear a turban during the ceremony at The Royal Horseguards during Trooping The Colour ceremony on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - JUNE 09: Queen Elizabeth II arrives at The Royal Horseguards during Trooping The Colour ceremony on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Dan Kitwood/Getty Images)
RAF Red Arrows during a flypast over Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Dominic Lipinski/PA Images via Getty Images)
Members of the Household Cavalry during the Trooping the Colour ceremony at Horse Guards Parade, central London, as the Queen celebrates her official birthday. (Photo by Victoria Jones/PA Images via Getty Images)
Spectators during the Trooping the Colour ceremony at Horse Guards Parade, central London, as the Queen celebrates her official birthday. (Photo by Victoria Jones/PA Images via Getty Images)
LONDON, ENGLAND - JUNE 09: Camilla, Duchess Of Cornwall and Catherine, Duchess of Cambridge head back along the Mall to Buckingham Palace during Trooping The Colour on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
The Duchess of Cornwall (left) and the Duchess of Cambridge, arrive at Buckingham Palace, central London from Horse Guards Parade, following the Trooping the Colour ceremony, to celebrate Queen Elizabeth II's official birthday. (Photo by Yui Mok/PA Images via Getty Images)
(left to right) Duchess of Cornwall, Duchess of Cambridge, and the Duke and Duchess of Sussex on the balcony of Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
LONDON, ENGLAND - JUNE 09: Catherine, Duchess of Cambridge heads back along the Mall to Buckingham Palace during Trooping The Colour on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
(left to right) Duchess of Cambridge, the Duke and Duchess of Sussex, Peter Phillips and wife Autumn with their children Savannah (right) and Isla, on the balcony of Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
(left to right) The Duchess of Cornwall, Duchess of Cambridge and the Duke and Duchess of Sussex, on the balcony of Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Beatrice, Lady Louise Windsor, Prince Andrew, Duke of York, Queen Elizabeth II, Meghan, Duchess of Sussex, Prince Charles, Prince of Wales, Prince Harry, Duke of Sussex, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Princess Charlotte of Cambridge, Savannah Phillips, Prince George of Cambridge and Isla Phillips on the balcony of Buckingham Palace during Trooping The Colour on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JUNE 09: Vice Admiral Sir Tim Laurence, Princess Anne, Princess Royal, Princess Beatrice, Lady Louise Windsor, Prince Andrew, Duke of York, Queen Elizabeth II, Meghan, Duchess of Sussex, Prince Charles, Prince of Wales, Prince Harry, Duke of Sussex, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Princess Charlotte of Cambridge, Savannah Phillips, Prince George of Cambridge and Isla Phillips watch the flypast on the balcony of Buckingham Palace during Trooping The Colour on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
(left to right) Queen Elizabeth II, Duchess of Sussex, Prince of Wales, Duke of Sussex, Duchess of Cambridge holding Princess Charlotte, Duke of Cambridge holding Prince George and Savannah Phillips on the balcony of Buckingham Palace, in central London, following the Trooping the Colour ceremony at Horse Guards Parade as the Queen celebrates her official birthday. (Photo by Yui Mok/PA Images via Getty Images)
LONDON, ENGLAND - JUNE 09: Princess Anne, Princess Royal, Princess Beatrice, Lady Louise Windsor, Prince Andrew, Duke of York, Queen Elizabeth II, Meghan, Duchess of Sussex, Prince Charles, Prince of Wales, Prince Harry, Duke of Sussex, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Princess Charlotte of Cambridge, Savannah Phillips, Prince George of Cambridge and Isla Phillips watch the flypast on the balcony of Buckingham Palace during Trooping The Colour on June 9, 2018 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, even though the Queen's actual birthday is on April 21st. (Photo by Chris Jackson/Getty Images)
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