Pop star Lady Gaga and chat show queen Oprah Winfrey sat down for a heart-to-heart talk where the musician revealed from everything to her mental health to Bradley Cooper. Oprah kick-started her 'Oprah’s 2020 Vision: Your Life in Focus' tour in Florida with Lady Gaga. However, the main focus of the interview revolved around Gaga's mental health. The 'Shallow' singer revealed that she suffered from post-traumatic stress disorder as a result of being raped at the age of 19.