Prince William, Kate Middleton team up with Meghan Markle, Prince Harry on new initiative: Details

The Cambridges and the Sussexes are teaming up again for a good cause.

Prince William, Kate Middleton, Prince Harry and Meghan Markle are partnering up to launch Shout, a 24-hour texting service offering free, confidential mental health support in collaboration with UK-based Crisis Text Line.

"We are incredibly excited to be launching this service, knowing it has the potential to reach thousands of vulnerable people every day," the couples said in a statement. "Over the last few months Shout has started working quietly behind the scenes. We have all been able to see the service working up close and are so excited for its future."

SEE ALSO: Internet goes wild over message on Prince Harry's jacket as he returns to work

The announcement came via a video released on Thursday featuring Prince William, in which he called for volunteers for the service.

"They’re really the first celebrities around the world to really take on mental health," Crisis Text Line CEO Nancy Lublin explained of the collaboration with the royals. "It’s been so personal and they’ve done such a fantastic job elevating the issue and reducing stigma."

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Duchess Kate and Duchess Meghan together
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Duchess Kate and Duchess Meghan together
LONDON, ENGLAND - MARCH 11: Catherine, The Duchess of Cambridge greets Meghan, Duchess of Sussex at Westminster Abbey for a Commonwealth day service on March 11, 2019 in London, England. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the worlds population, of whom 60 percent are under 30 years old. Each year the Commonwealth adopts a theme upon which the Service is based. This years theme A Connected Commonwealth speaks of the practical value and global engagement made possible as a result of cooperation between the culturally diverse and widely dispersed family of nations, who work together in friendship and goodwill. The Commonwealths governments, institutions and people connect at many levels, including through parliaments and universities. They work together to protect the natural environment and the ocean which connects many Commonwealth nations, shore to shore. Cooperation on trade encourages inclusive economic empowerment for all people - particularly women, youth and marginalised communities. The Commonwealths friendly sporting rivalry encourages people to participate in sport for development and peace. (Photo by Richard Pohle - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 11: Catherine, The Duchess of Cambridge sits near Meghan, Duchess of Sussex as they attend the Westminster Abbey Commonwealth day service on March 11, 2019 in London, England. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the worlds population, of whom 60 percent are under 30 years old. Each year the Commonwealth adopts a theme upon which the Service is based. This years theme A Connected Commonwealth speaks of the practical value and global engagement made possible as a result of cooperation between the culturally diverse and widely dispersed family of nations, who work together in friendship and goodwill. The Commonwealths governments, institutions and people connect at many levels, including through parliaments and universities. They work together to protect the natural environment and the ocean which connects many Commonwealth nations, shore to shore. Cooperation on trade encourages inclusive economic empowerment for all people - particularly women, youth and marginalised communities. The Commonwealths friendly sporting rivalry encourages people to participate in sport for development and peace. (Photo by Richard Pohle - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 11: Catherine, The Duchess of Cambridge talks with Meghan, Duchess of Sussex at Westminster Abbey Commonwealth day service on March 11, 2019 in London, England. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the worlds population, of whom 60 percent are under 30 years old. Each year the Commonwealth adopts a theme upon which the Service is based. This years theme A Connected Commonwealth speaks of the practical value and global engagement made possible as a result of cooperation between the culturally diverse and widely dispersed family of nations, who work together in friendship and goodwill. The Commonwealths governments, institutions and people connect at many levels, including through parliaments and universities. They work together to protect the natural environment and the ocean which connects many Commonwealth nations, shore to shore. Cooperation on trade encourages inclusive economic empowerment for all people - particularly women, youth and marginalised communities. The Commonwealths friendly sporting rivalry encourages people to participate in sport for development and peace. (Photo by Richard Pohle - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 11: Members of Britain's Royal family leave after attending the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool) (Kirsty Wigglesworth - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 11: Catherine, The Duchess of Cambridge stands with Meghan, Duchess of Sussex at Westminster Abbey for a Commonwealth day service on March 11, 2019 in London, England. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the worlds population, of whom 60 percent are under 30 years old. Each year the Commonwealth adopts a theme upon which the Service is based. This years theme A Connected Commonwealth speaks of the practical value and global engagement made possible as a result of cooperation between the culturally diverse and widely dispersed family of nations, who work together in friendship and goodwill. The Commonwealths governments, institutions and people connect at many levels, including through parliaments and universities. They work together to protect the natural environment and the ocean which connects many Commonwealth nations, shore to shore. Cooperation on trade encourages inclusive economic empowerment for all people - particularly women, youth and marginalised communities. The Commonwealths friendly sporting rivalry encourages people to participate in sport for development and peace. (Photo by Richard Pohle - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 11: Catherine, The Duchess of Cambridge talks with the Meghan, Duchess of Sussex at Westminster Abbey Commonwealth day service on March 11, 2019 in London, England. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the worlds population, of whom 60 percent are under 30 years old. Each year the Commonwealth adopts a theme upon which the Service is based. This years theme A Connected Commonwealth speaks of the practical value and global engagement made possible as a result of cooperation between the culturally diverse and widely dispersed family of nations, who work together in friendship and goodwill. The Commonwealths governments, institutions and people connect at many levels, including through parliaments and universities. They work together to protect the natural environment and the ocean which connects many Commonwealth nations, shore to shore. Cooperation on trade encourages inclusive economic empowerment for all people - particularly women, youth and marginalised communities. The Commonwealths friendly sporting rivalry encourages people to participate in sport for development and peace. (Photo by Richard Pohle - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 11: Catherine, Duchess of Cambridge, (foreground centre), sits with Prince William, Camilla, the Duchess of Cornwall and Prince Charles, front row, Prince Andrew, background right, Meghan, the Duchess of Sussex and Prince Harry, at the Commonwealth Service at Westminster Abbey on March 11, 2019 in London, England. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Photo by Kirsty Wigglesworth - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 5: Catherine, Duchess of Cambridge, Camilla, Duchess of Cornwall, Prince William, Duke of Cambridge, Prince Harry, Duke of Sussex, Queen Elizabeth II, Prince Charles, Prince of Wales and Meghan, Duchess of Sussex attend a reception to mark the fiftieth anniversary of the investiture of the Prince of Wales at Buckingham Palace on March 5, 2019 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
(L-R) Britain's Catherine, Duchess of Cambridge, Britain's Queen Elizabeth II, Britain's Prince William, Duke of Cambridge, Britain's Camilla, Duchess of Cornwall, Britain's Prince Charles, Prince of Wales, Britain's Prince Harry, Duke of Sussex, and Britain's Meghan, Duchess of Sussex attend a reception to mark the 50th Anniversary of the investiture of The Prince of Wales at Buckingham Palace in London on March 5, 2019. - The Queen hosted a reception to mark the Fiftieth Anniversary of the investiture of Britain's Prince Charles, her son, as the Prince of Wales. Prince Charles was created The Prince of Wales aged 9 on July 26th 1958 and was formally invested with the title by Her Majesty The Queen on July 1st 1969 at Caernarfon Castle. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/WireImage)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/WireImage)
KING'S LYNN, ENGLAND - DECEMBER 25: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/WireImage)
(L-R) Britain's Prince Charles, Prince of Wales, Britain's Prince William, Duke of Cambridge, Britain's Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex arrive for the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
LONDON, ENGLAND - NOVEMBER 11: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend the Centenary Of The Armistice Service at Westminster Abbey on November 11, 2018 in London, England. (Photo by Karwai Tang/WireImage)
(L-R) Britain's Prince William, Duke of Cambridge, Prince Harry, Duke of Sussex, Meghan, Duchess of Sussex and Catherine, Duchess of Cambridge arrive at Westminster Abbey to attend a service to mark the centenary of the Armistice in central London on November 11, 2018. (Photo by Paul Grover / POOL / AFP) (Photo credit should read PAUL GROVER/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge, (L) Britain's Prince Harry, Duke of Sussex, (C) and Meghan, Duchess of Sussex react during the wedding ceremony of Britain's Princess Eugenie of York to Jack Brooksbank at St George's Chapel, Windsor Castle, in Windsor, on October 12, 2018. (Photo by Owen Humphreys / POOL / AFP) (Photo credit should read OWEN HUMPHREYS/AFP/Getty Images)
LONDON, ENGLAND - JULY 14: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend day twelve of the Wimbledon Tennis Championships at the All England Lawn Tennis and Croquet Club on July 14, 2018 in London, England. (Photo by Karwai Tang/WireImage )
LONDON, ENGLAND - JULY 14: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend day twelve of the Wimbledon Tennis Championships at the All England Lawn Tennis and Croquet Club on July 14, 2018 in London, England. (Photo by Karwai Tang/WireImage )
LONDON, ENGLAND - JULY 14: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend day twelve of the Wimbledon Tennis Championships at the All England Lawn Tennis and Croquet Club on July 14, 2018 in London, England. (Photo by Karwai Tang/WireImage )
LONDON, UNITED KINGDOM - JULY 1O: Meghan, Duchess of Sussex, Prince Harry, Duke of Sussex, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge stand on the balcony of Buckingham Palace to view a flypast to mark the centenary of the Royal Air Force (RAF) on July 10, 2018 in London, England. (Photo by Anwar Hussein/WireImage)
LONDON, UNITED KINGDOM - JULY 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge, Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend a ceremony to mark the centenary of the Royal Air Force on the forecourt of Buckingham Palace on July 10, 2018 in London, England. The 100th birthday of the RAF, which was founded on on 1 April 1918, was marked with a centenary parade with the presentation of a new Queen's Colour and flypast of 100 aircraft over Buckingham Palace. (Photo by Max Mumby/Indigo/Getty Images)
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She added that the royals have visited the company's offices "multiple times" and have "really been very hands-on" in the collaboration process, which was born out of a meeting over dinner back in November 2016.

"I think it's so powerful," Lublin went on. "We really couldn’t ask for better spokespeople and champions. Mental health is the epidemic of this generation."

The texting service is just the latest in a long list of initiatives that the next generation of royals has taken around promoting mental health awareness and support over the past several years. Most recently, Harry and Meghan's Sussex Royal Instagram account raised awareness for May being Mental Health Awareness Month in the United States.

"To pay tribute to all of the incredible work people across the globe are doing in this space, we are hoping to shine a light on several Instagram accounts that promote mental well-being, mental fitness, body positivity, self-care, and the importance of human connection - to not just hear each other, but to listen," their post on April 30 said. "There are countless organisations doing amazing work for mental health - please consider the accounts we’ve highlighted as a small snapshot of this global support network."

SEE ALSO: Twitter reacts to Harry and Meghan's unexpected baby name

"We invite you to explore the extraordinary stories of strength, and the commitment to kindness as seen in the above accounts," the couple went on. "Each month we will honour this same concept and change the accounts we solely follow based on a different theme or cause. Please go to our homepage and click “following” to see each of the select accounts and find out more about their work."

Their new approach to their official Instagram account raised eyebrows because it meant that they had unfollowed other royal accounts that belonged to William, Kate and the rest of the royal family.

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Prince Harry returns to work after royal baby's arrival
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Prince Harry returns to work after royal baby's arrival
THE HAGUE, NETHERLANDS - MAY 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince Harry, Duke of Sussex visits Sportcampus Zuiderpark as part of a programme of events to mark the official launch of the Invictus Games The Hague 2020 on May 9, 2019 in The Hague, Netherlands. (Photo by Max Mumby/Indigo/Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince Harry, Duke of Sussex rides a bicycle around Sportcampus Zuiderpark as part of a programme of events to mark the official launch of the Invictus Games The Hague 2020 on May 9, 2019 in The Hague, Netherlands. (Photo by Max Mumby/Indigo/Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince Harry, Duke of Sussex rides a bicycle around Sportcampus Zuiderpark as part of a programme of events to mark the official launch of the Invictus Games The Hague 2020 on May 9, 2019 in The Hague, Netherlands. (Photo by Max Mumby/Indigo/Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince Harry, Duke of Sussex rides a bicycle around Sportcampus Zuiderpark as part of a programme of events to mark the official launch of the Invictus Games The Hague 2020 on May 9, 2019 in The Hague, Netherlands. (Photo by Max Mumby/Indigo/Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince Harry, Duke of Sussex rides a bicycle around Sportcampus Zuiderpark as part of a programme of events to mark the official launch of the Invictus Games The Hague 2020 on May 9, 2019 in The Hague, Netherlands. (Photo by Max Mumby/Indigo/Getty Images)
The Duke of Sussex (centre) rides a bicycle during events to launch the one year countdown to next year's Invictus Games in the Hague, in the Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
The Duke of Sussex rides a bicycle during events to launch the one year countdown to next year's Invictus Games in the Hague, in the Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: Prince Harry, Duke of Sussex mounts a bike for the next part of the tour at Sportcampus Zuiderpark during a visit to The Hague as part of a programme of events to mark the official launch of the Invictus Games. HRH will spend time meeting potential competitors and their families, joining the Netherlands in celebrating what an exciting event The Hague 2020 will be. Prince Harry, Duke of Sussex founded the games in 2014 in which wounded veterans compete in an array of sporting events on May 09, 2019 in The Hague, Netherlands. (Photo by Chris Jackson/Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince Harry, Duke of Sussex is presented with an Invictus Games baby grow for his newborn son Archie as he visits Sportcampus Zuiderpark as part of a programme of events to mark the official launch of the Invictus Games The Hague 2020 on May 9, 2019 in The Hague, Netherlands. (Photo by Max Mumby/Indigo/Getty Images)
The Duke of Sussex receives a gift for his new son, Archie, from Princess Margriet of the Netherlands at a sports training session at Sportcampus Zuiderpark during a visit to The Hague as part of a programme of events to mark the official launch of the Invictus Games, Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
The Duke of Sussex arriving for one day visit to Amsterdam in the Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
Britain's Prince Harry holds an item of baby clothing during the presentation of The Invictus Games The Hague 2020 in The Hague on May 9, 2019. - In 2020, the sports event for physically and mentally injured soldiers will be held in the Zuiderpark in the Netherlands city. (Photo by patrick van katwijk / ANP / AFP) / Netherlands OUT (Photo credit should read PATRICK VAN KATWIJK/AFP/Getty Images)
The Duke of Sussex with Princess Margriet of the Netherlands as he arrives for one day visit to Amsterdam in the Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
The Duke of Sussex at a sports training session at Sportcampus Zuiderpark during a visit to The Hague as part of a programme of events to mark the official launch of the Invictus Games, Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
The Duke of Sussex at a sports training session at Sportcampus Zuiderpark during a visit to The Hague as part of a programme of events to mark the official launch of the Invictus Games, Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: Prince Harry, Duke of Sussex poses with a competitors family member at a sports training session at Sportcampus Zuiderpark during a visit to The Hague as part of a programme of events to mark the official launch of the Invictus Games. HRH will spend time meeting potential competitors and their families, joining the Netherlands in celebrating what an exciting event The Hague 2020 will be. Prince Harry, Duke of Sussex founded the games in 2014 in which wounded veterans compete in an array of sporting events on May 09, 2019 in The Hague, Netherlands. (Photo by Chris Jackson Pool/Getty Images)
The Duke of Sussex at a sports training session at Sportcampus Zuiderpark during a visit to The Hague as part of a programme of events to mark the official launch of the Invictus Games, Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
The Duke of Sussex (centre) arriving for one day visit to Amsterdam in the Netherlands. (Photo by Kirsty O'Connor/PA Images via Getty Images)
THE HAGUE, NETHERLANDS - MAY 09: Prince Harry, Duke of Sussex arrives at Sportcampus Zuiderpark in The Hague as part of a programme of events to mark the official launch of the Invictus Games. HRH will spend time meeting potential competitors and their families, joining the Netherlands in celebrating what an exciting event The Hague 2020 will be. Prince Harry, Duke of Sussex founded the games in 2014 in which wounded veterans compete in an array of sporting events on May 09, 2019 in The Hague, Netherlands. (Photo by Chris Jackson/Getty Images)
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