After Prince Harry opened up about his mental health following Princess Diana's death in 1997, Prince William too spoke about it in a video chat with pop star Lady Gaga. In a video produced for the prince's charity and released Tuesday, both had a candid discussion, breaking the stigma around mental health problems.

Several celebrities, from Kendall Jenner, Emma Stone to Lady Gaga, have battled with anxieties and other mental issues about which they have opened up in recent years, according to reports.

Read: Prince Harry Shares About His Mental Illness After Princess Diana's Death

Supermodel and reality star Kendall Jenner struggled with anxiety last year and she opened up about it this year.

"Anxiety was a huge hurdle for me to deal with this past year (and security concerns didn't help)," Jenner wrote on her app. "But I think I'm finally learning how to cope."

Jenner also wrote about a panic attack she once experienced. "I once had a really bad attack on a plane and just had to ride it out," she wrote. She added, "I felt my heart beating a million miles an hour and I even went a little numb," according to reports.

"La La Land" actress Emma Stone told Rolling Stone how she grew up as a child with anxiety. She said: "When I was about 7, I was convinced the house was burning down. I could sense it. ... Not a hallucination, just a tightening in my chest, feeling I couldn't breathe, like the world was going to end. There were some flare-ups like that, but my anxiety was constant."

She added: "At a certain point, I couldn't go to friends' houses anymore – I could barely get out the door to school."

Along with therapy, acting also helped her in curing anxiety. "I started acting at this youth theater, doing improv and sketch comedy ... You have to be present in improv, and that’s the antithesis of anxiety," the actress said.

During a visit with homeless LGBTQ teens in New York City last December, Lady Gaga opened up about her struggle with post-traumatic stress disorder (PTSD).

"I told the kids today, 'I suffer from PTSD.' I’ve never told anyone that before ... But the kindness that’s shown to me by doctors as well as my family, and my friends, it’s really saved my life," she said.

"Keeping Up With the Kardashians" star Kim Kardashian opened up about her struggles with anxiety and fear in one of the episodes last November, according to ET Online.

In an interview for Elle Canada, supermodel Miranda Kerr opened up about the depression she faced after splitting from her husband, Orlando Bloom, in 2013.

"My mom used to call me a 'giggling Gert' because I was always laughing, even in my sleep," she said. "When Orlando and I separated, I actually fell into a really bad depression."

At the time of crisis, Kerr said she learned that "every thought you have affects your reality and only you have control of your mind."