Prince William talks mental health with Lady Gaga over FaceTime

And it's incredibly important

Even celebrities FaceTime one other from time to time – namely Lady Gaga and Prince William, who have been chatting about mental health as part of Heads Together's #oktosay campaign.

The prince reportedly asked Lady Gaga to get involved with the campaign after she penned an open letter last year, which detailed her experience with PTSD after being raped.

The singer said she was a 'very big fan' of the work he had done with Heads Together.

Asked by Prince William how speaking out made her feel, Lady Gaga said: 'It made me very nervous at first... But it was like saying "this is a part of me, and that's OK."'

The pair's video call comes just after Prince Harry opened up about his mental health in an interview with Bryony Gordon on her podcast, Mad World.

The two agreed that people need to speak out in order to break the taboos surrounding mental illness, with Prince William suggesting they meet up if Lady Gaga visits the UK later this year.

'I would love that' she said. 'We have to make the strongest, most relentless attempt we can to normalise mental health issues so that people feel like they can come forward.'