Prince George looks all grown up on official photo for his fifth birthday

They sure do grow up fast! And the old saying even applies to royals!

For proof, look no further than Prince George's official birthday photo. He turns five on Sunday and he couldn't be more giddy over it.

"The Duke and Duchess of Cambridge are very pleased to share a new photograph of Prince George to mark his fifth birthday," Kensington Palace wrote along with the shot of George showing off his pearly whites. "Thank you everyone for your lovely messages."

George even got his own commemorative coin for the big day.

RELATED: Prince George out and about

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Prince George out and about
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Prince George out and about
WINDSOR, UNITED KINGDOM - OCTOBER 12: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Princess Charlotte of Cambridge and Prince George of Cambridge attend the wedding of Princess Eugenie of York and Jack Brooksbank at St George's Chapel on October 12, 2018 in Windsor, England. (Photo by Pool/Max Mumby/Getty Images)
WINDSOR, ENGLAND - OCTOBER 12: Bridesmaid Theodora Williams, pageboy Prince Georeg of Cambridge and Savannah Phillips attend the wedding of Princess Eugenie of York and Jack Brooksbank at St George's Chapel in Windsor Castle on October 12, 2018 in Windsor, England. (Photo by Pool/Samir Hussein/WireImage)
Britain's Prince George of Cambridge reacts as he arrives with other brisdemaids to attend the wedding of Britain's Princess Eugenie of York to Jack Brooksbank at St George's Chapel, Windsor Castle, in Windsor, on October 12, 2018. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
The bridesmaids and page boys, including Prince George of Cambridge (C) and Princess Charlotte of Cambridge (3L), stand with Sarah, Duchess of York (L), Britain's Princess Beatrice of York (2L) as they wave off Britain's Princess Eugenie of York and her husband Jack Brooksbank from the West Steps of St George's Chapel, Windsor Castle, in Windsor, on October 12, 2018 after their wedding ceremony. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
Britain's Princess Charlotte of Cambridge and Britain's Prince George of Cambridge hold hands with their father, Britain's Prince William, Duke of Cambridge, as Britain's Prince Louis of Cambridge is carried by his mother, Britain's Catherine, Duchess of Cambridge after his christening service at the Chapel Royal, St James's Palace, London on July 9, 2018. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince George of Cambridge, Jasper Dyer, Princess Charlotte of Cambridge, Catherine, Duchess of Cambridge, Jessica Mulroney, Ivy Mulroney and Florence van Cutsem arrive at the wedding of Prince Harry and Ms. Meghan Markle at St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Jane Barlow - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 09: Prince Harry, Duke of Sussex, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Princess Charlotte of Cambridge, Savannah Phillips and Prince George of Cambridge on the balcony of Buckingham Palaceduring Trooping The Colour 2018 at 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 Karwai Tang/WireImage)
LONDON, ENGLAND - JUNE 09: 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)
LONDON, ENGLAND - JUNE 09: Princess Charlotte of Cambridge, Savannah Phillips, Prince George of Cambridge and Isla Phillips stand on the balcony of Buckingham Palace during the Trooping the Colour parade on June 9, 2018 in London, England. (Photo by James Devaney/FilmMagic)
LONDON, UNITED KINGDOM - JUNE 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince George of Cambridge and Isla Phillips stand on the balcony of Buckingham Palace during Trooping The Colour 2018 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 Max Mumby/Indigo/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)
GLOUCESTER, ENGLAND - JUNE 10: Prince George of Cambridge attends the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England. (Photo by Samir Hussein/WireImage)
GLOUCESTER, ENGLAND - JUNE 10: Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England. (Photo by Samir Hussein/WireImage)
GLOUCESTER, ENGLAND - JUNE 10: Catherine, Duchess of Cambridge looks on as Prince George of Cambridge holds a toy gun the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England. (Photo by Samir Hussein/WireImage)
GLOUCESTER, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Savannah Phillips, Princess Charlotte of Cambridge and Prince George of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)
GLOUCESTER, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince George of Cambridge plays with a Slinky toy as he attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)
GLOUCESTER, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince George of Cambridge swings a polo mallet as he attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)
GLOUCESTER, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince George of Cambridge attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)
GLOUCESTER, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge comforts Prince George of Cambridge as they attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)
GLOUCESTER, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince George of Cambridge attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)
GLOUCESTER, ENGLAND - JUNE 10: Savannah Phillips, Princess Charlotte of Cambridge, Prince George of Cambridge and Catherine, Duchess of Cambridge during the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England. (Photo by Antony Jones/Getty Images)
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It feels like only yesterday when the world watched with bated breath as Britain awaited the arrival of its likely future monarch

As the eldest child of Prince William, George is in line to take over the throne from his dad, just as William will take over for Prince Charles one day.

Per a royal family statement, George's adorable snapshot was taken in the garden at Clarence House by Matt Porteous on July 9 following the christening of his new little brother, Prince Louis.

Louis, the newest member of the royal family, was born in April.

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