They will watch the final of the postponed 2020 European Championships, which sees England take on Italy for the chance to win their first international competition since the 1966 World Cup.
With Prince George as their "lucky charm", no doubt the Cambridges will be hoping for a win, and the atmosphere in the stadium is sure to be electric with 60,000 in attendance, including many famous faces.
Read on to see the best royal and celebrity photos from the big event…
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WATCH: Prince George sings God Save the Queen with gusto at Euro finals
Prince George was clearly delighted by England's early goal, and shared a sweet moment with his dad.
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The young Prince celebrated the exciting moment with his parents.
Kate and William appeared to be deep in conversation shortly before kick-off.