Watch the trailer for Prince Harry and Oprah's new docuseries about mental health premiering this week

• You can now watch the trailer for Prince Harry and Oprah Winfrey's mental-health docuseries.
• The series features interviews with celebrities like Glenn Close and Lady Gaga.
• "The Me You Can't See" will be available to stream on Apple TV Plus starting May 21.

Apple TV Plus on Monday released the trailer for "The Me You Can't See," Prince Harry and Oprah Winfrey's upcoming docuseries on mental health.

"All over the world people are in some kind of mental, psychological, emotional pain," Oprah says in the trailer. "Being able to say, 'This is what happened to me,' is crucial."

The series, which premieres on Apple TV Plus on May 21, was first announced by Kensington Palace in 2019 with the mission of encouraging viewers to talk about challenges and daily struggles they face, according to previous reporting by Insider. An Apple press release said that a team of mental-health professionals was involved in the making of the series.

"The Me You Can't See" will feature interviews with celebrities including singer-actress Lady Gaga, actress Glenn Close, NBA players DeMar DeRozan and Langston Galloway, and popular chef Rashad Armstead.

"I don't tell this story for my own self-service," Gaga says in the series. "I've been through it and people need help."

The trailer gives viewers a look into the emotions and intimate discussions to come from Gaga, Close, Winfrey, and Armstead (among others featured), as they each tear up in front of the camera.

"The results of this year will be felt for decades," Harry says as the screen shows a montage of people including his wife, Meghan Markle, holding their son Archie. "The kids, families, husbands, wives, everybody."

Harry has spoken out about mental health many times before. In efforts to get people comfortable with speaking about mental health, he launched the Heads Together initiative along with Prince William and Kate Middleton. Harry also spoke about "shutting down all of my emotions" for the 20 years following his mother Princess Diana's death on an episode of the Mad World podcast, hosted by journalist Bryony Gordon.

More recently in a bombshell interview with Winfrey, the Duke of Sussex spoke at length about mental-health issues he and Markle have faced personally. He revealed that Markle helped him realize he was "trapped" by his royal lifestyle, and Markle said there came a point when she "didn't want to be alive anymore" but couldn't get help.

You can watch "The Me You Can't See" trailer below.