The Hannah Montana that we used to know is finally not a teenager any more. Hollywood celebrity Miley Cyrus has just celebrated her 20th birthday with a bang. Miley Cyrus is now an adult and expect changes in her roles and music. Miley Cyrus started when she was 13 years old with Disney channel. Kids love her as Hannah Montana, the country girl that achieved stardom in the big city. Miley Cyrus is a talented girl and she gets what she wants. She is a total package in one. Once again Happy Birthday Miley Cyrus!