Lil Nas X was diagnosed with bipolar disorder after his battery arrest last year. A Los Angeles judge revealed the news during a court hearing on Monday, April 6, while granting the "Old Town Road" rapper entry into a mental health diversion program, according to Rolling Stone. Judge Alan Schneider also agreed to dismiss the case if Lil Nas X (real name Montero Lamar Hill) continues treatment and does not break any more laws in the next two years.