Earlier this week Prince William FaceTimed Lady Gaga to talk mental health and now he's sitting down with his brother and wife to break down the barriers around the conversation, talking about Princess Diana's death and the pressures life can put on you mentally.

Princes William and Harry joined Kate Middleton to talk about their mother's death and how it effected their mental health as part of as part of their Heads Together campaign to end the stigma surrounding the discussion of mental health. 

"We've never really talked about losing a mum at such a young age," Harry says to William in the video. "When you speak to other people's families, you think, wow I don't want them to have to go through the same thing."

"I always thought to myself, what's the point in bringing up something that's only gonna make you sad? It ain't gonna change it. It ain't gonna bring her back." 

Kate joins in the conversation to commend her husband and brother-in-law, praising their ability to cope with the tragedy on top of their lives in the public eye. "I put that down to your really early years, childhood experience. But, also the relationship you've got. You're amazingly close," said Kate.

"We have been brought closer because of the circumstances as well," William adds.

You can watch the full video below.