Prince Harry has appeared in a charity video for Heads Together, a mental health group in the United Kingdom.
In the video released on Facebook, the Prince encourages those in the London Marathon to run for Heads Together to raise awareness "about the importance of talking openly about mental health."
"William [Duke of Cambridge], Katherine [Duchess of Cambridge] and I would like to invite you to run with Heads Together. Together, we can start the biggest ever national movement to end stigma on mental health and change the conversation for everyone," the Prince says in the video.
The video also shows a lighter side to the Prince, who dons a bright blue headband before cracking up at the silliness of his appearance.
Prince Harry and Prince William, as well as Duchess Kate Middleton, are regular supporters of mental health charities in the UK.
The trio recently appeared together to celebrate Mental Health Day on October 10, where they delivered a speech in support of the cause.