Fun fact: Miley Cyrus is 25 years old today. That means when Hannah Montana started back in 2006, she was only 13. Now, your life might not be that much like Miley’s, but you’ve probably changed a lot since you were 13, and so has she. Today, let’s examine the mental breakdown, and later redemption, of Miley Ray Cyrus. First of all, it’s probably impossible to be a 13-year-old pop star with a TV show without being just a little bit crazy.