The dress is from Monsoon and has already sold out unsurprisingly after the little one was spotted in it.
WATCH: Prince William and Prince George's cute duet
The royal was pictured clapping along with the audience and waving her Union Jack flag during performances. She sat next to her mother Kate Middleton and her brother Prince George. Her youngest sibling Prince Louis was at home for the event, deemed too young to join in the late night festivities.
Princess Charlotte looked lovely for the celebrations
Shop a similar style:
Souza scarlet robe red dress, £55.99, Trouva
Souza red riding hood cape, £26, Children Salon
If you don't manage to get your hands on the real thing, there's an Etsy version with the same wow-factor for just £35.
Arabella dress, £35, Etsy
Not only perfectly patriotic, a dress like this will work for weddings, birthdays and can even be hung up in the wardrobe for Christmas Day!
Over the Jubilee weekend, Charlotte has looked effortlessly stylish alongside her fashion icon mother. On Saturday, the royal stepped out with her family at Cardiff Castle wearing a cute dark blue coat with a Peter Pan collar and pretty button detailing down the front. Charlotte also wore the same coat to her great-grandfather Prince Philip's service of thanksgiving in March 2022. A wardrobe staple it seems!
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