In it, Prince William opens up about his own loss and how he learned to deal with his grief.
In the call from Hollywood to Kensington Palace, which was posted on the monarchy's Facebook page yesterday, William, 34, said: "It's time that everyone speaks up and feels very normal about mental health. Just having a conversation with a friend or family member can really make such a difference".
April 19, 2017 by Chloe Best Prince William has said he still feels "shock" about the death of his mother Princess Diana, nearly 20 years after she was killed in a vehicle crash in Paris.
His younger brother Prince Harry has said he spent almost 20 years "not thinking" about Diana's auto crash in August 1997. The campaign focuses on removing the negative associations surrounding mental health and wellbeing.
And he praised her bravery in revealing through an open letter a year ago that she lives with post-traumatic stress disorder.
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In an interview with the Daily Telegraph, Harry revealed he spent almost 20 years "not thinking" about his mother's death and eventually got help after two years of "total chaos".
"For me waking up every day feeling sad and going on stage is just very hard to describe", Gaga shared.
Lady Gaga believes there is "a lot of shame" attached to mental illness. You never get over it.
Lady Gaga went on to admit that she often wakes up feeling both exhausted and sad. You won't be judged. She also noted how those facing mental health challenges no longer have to hide. "It's so important to break open that fear and that taboo". "I feel like we are not hiding anymore we're starting to talk and that's what we need to do", Gaga said.
"Catherine and I are clear that we want both George and Charlotte to grow up feeling able to talk about their emotions and feelings", he said of his wife, Kate Middleton, in a recent interview with CALM.
On Wednesday, the 32-year-old prince attended the opening of the Virgin Money London Marathon Expo in London, on behalf of his Heads Together campaign with the Duke and Duchess of Cambridge, which is this year's charity of the year for the marathon. The singer, who has always been outspoken about her past battles with eating disorders, depression, and PTSD, will be joining forces with William's Heads Together Foundation to get young people talking about their feelings as a part of their #oktosay campaign.