Lady Gaga is headlining Coachella but that hasn't stopped her from traveling all the way across the pond via FaceTime to collaborate with Prince William for a good cause.

The singer connected with the Royal Family via their Facebook Live stream, where Prince William wanted to discuss her struggles with mental health, specifically PTSD.

Gaga reportedly spoke out about her diagnosis in December, and Prince William got wind of her brave, personal testimonial.

According to Us Magazine, he says, "I really felt this was such an important area that throughout all our charitable work, whether it be veterans, homelessness, addiction, most of it seemed to stem back to mental health issues."

Gaga has opened up about her own struggles, and knows the shame attached to waking up sad despite being surrounded by success.

Prince William and his family have a charity, Heads Together, that helps bring awareness to the stigmas of mental health... Now Gaga will reportedly join him in England in October to help continue the conversation and benefit others suffering from mental health issues.