Britain's second in line to the throne, Prince William, and US superstar Lady Gaga have teamed up to encourage people to speak more openly about mental health in a video released Tuesday.
The unlikely pair chat online in the video posted on Facebook and urge people to break the stigma surrounding mental health.
"It's time that everyone speaks up and really feels very normal about mental health, it's the same as physical health," Prince William told Lady Gaga from Kensington Palace in London.
"It's so important to break open that fear and that taboo which is only going to lead to more problems down the line," he said.
In an open letter published last year on the website of her Born This Way Foundation, Lady Gaga revealed that she was suffering from Post Traumatic Stress Disorder.
"There is a lot of shame attached to mental illness, you feel like something's wrong with you," the singer told Prince William from her home in Hollywood.
"We have to make the strongest, most relentless attempt we can to normalize mental health issues, so that people feel like they can come forward," she said.
The video - which was watched over 500,000 times within hours of release - is part of the Heads Together campaign, a mental health charity championed by Prince William, his wife Kate and brother, Prince Harry.