Prince William has a new supporter for his Heads Together mental health awareness campaign: Lady Gaga. As part of their newly launched #oktosay film series, "The Cure" singer had a casual FaceTime chat with the British royal to talk about how the campaign has inspired her. Not only is it sweet to see the two gush over each other, but Gaga also opens up about her own personal struggle with PTSD and how speaking publicly actually helped normalize it. "Even though it was hard, it was the best thing that could come out of my mental illness," she said. "To share it with other people and let our generation, as well as other generations, know that if you are feeling not well in your mind, you are not alone."