Believe it or not. Miley Cyrus just turned 19 years old a couple day ago. I know it is hard to believe because she looks older. Miley Cyrus joins the latest list of celebrities such as Kim Kardashian, Michael Emerson, and others to shoot for the NOH8 campaign launched by Adam Bouska and Jeff Parshley. Miley is for civil rights for all! She first posted a video in support of Occupy Wall Street then caught up in a marijuana controversy.