Wearing a crisp, white collared shirt with blue piping, the cheeky young royal beams for the camera in a picture taken by photographer Matt Porteous.
Along with the photograph, Kensington Palace wrote: 'The Duke and Duchess of Cambridge are very pleased to share a new photograph of Prince George to mark his fifth birthday – thank you everyone for your lovely messages.'
Prince George isn't the only little royal being compared to his famous mum.
However, despite many noticing the similarities between Charlotte and her mother, the most noteworthy similarities that royal fans have picked up on is that of the three-year-old royal and her great-grandmother, Queen Elizabeth.
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