The Cambridges and the Sussexes star together in a new mental health PSA

The Fab Four lent their voices towards a mental health public service announcement for Every Mind Matters.

Despite having separate charitable foundations now, The Duke and Duchess of Cambridge and Duke and Duchess and Sussex have come together once again to narrate a powerful public service announcement as part of a new mental health campaign.
The campaign, Every Mind Matters, is a new initiative with Britain's National Health Service (NHS) and backed by a number of mental health charities' including the Royal Foundation's Heads Together Campaign, which aims to help people manage and maintain their mental health and be confident in supporting others.
The Fab Four have teamed up once again, to lend their voices to a new mental health PSA. (Image: Getty)
A 60-second version of the video to launch the campaign was shared today, which features the voices of all four royals, with the full-length version set to air on major TV networks in Britain on Monday evening.
"Everyone knows that feeling, when life gets on top of us," Prince William says in the opening of the video, which shows a compilation of videos of notable UK personalities including actress Gillian Anderson, in black and white.
"We feel stressed, low, anxious or have trouble sleeping."
"We think there's nothing to be done, nothing we can do about it," Prince Harry continues after his older brother.
Meghan continues where her husband left off, as the video switches to colour, adding: "But now, there's a new way to help turn things around.
"Every Mind Matters will show you simple ways to look after your mental health."
Duchess Catherine follows saying, "It will get you started with a free online plan designed to help you deal with stress, boost your mood, improve your sleep and feel more in control."
Prince William wraps up the video adding, "We can all benefit from taking simple steps to look after our mental health."
British actress Gillian Anderson also stars in the mental health PSA, which the royals helped to narrate.
The PSA was produced by Love Actually and Four Weddings and a Funeral director Richard Curtis, and directed by British photographer Rankin, reports.
Last month it was reported the director, who is a mental health advocate himself, had visited Duchess Catherine at Kensington Palace to discuss a mental health initiative, which today has revealed to have been Every Mind Matters.
And, according to a royal source who spoke to People, all four of the royals were very eager to take part.
"When they heard about it, all four of them were really keen to take part," the source said.
"It is a really positive project, and all four of them have been involved and they hope it will have a huge impact."
According to a royal source all four of the royals were very keen to take part in the mental health campaign. (Image: Getty)
William, Kate, Harry and Meghan have all been passionate advocates for mental health and wellbeing and breaking the stigma surrounding mental illness.
In July the Fab Four helped to launch Shout, a 24/7 text helpline which connects people in need to trained volunteers who provide help at a time when it's most needed.
While Harry and Meghan have since broken away from the Royal Foundation under which the Heads Together campaign was launched, they are still very much involved, with better supporting mental health and wellbeing a big focus for all four of the royals.
In fact, Mental Health Awareness Month was the first theme of Harry and Meghan's Instagram concept, where each month they shine a light on a particular theme or cause and follow a number of accounts doing incredible work within those fields.