Wear A Hat Day!

It's the 10th annual Wear A Hat Day today, when people all over the UK are putting on their favourite hat to raise awareness of brain tumours. Brain tumours kill more kids and adults under 40 than any other type of cancer, so it's important to raise awareness of this horrible disease.

There are plenty of events all over the place, but even if you can't get involved in something hat-themed today, why not post a hat selfie below? We'd love to see it!