The Duke & Duchess Of Cambridge And Prince Harry Celebrate World Mental Health Day At The London Eye With Heads Together [Getty Images]

LONDON, ENGLAND - OCTOBER 10: Prince Harry arrives at the London Eye on World Mental Health Day on October 10, 2016 in London, England. (Photo by Samir Hussein/WireImage) — see more

LONDON, ENGLAND - OCTOBER 10: Prince Harry arrives at the London Eye on World Mental Health Day on October 10, 2016 in London, England. (Photo by Samir Hussein/WireImage)

WireImage Samir Hussein