It is still Hannah Montana's world, and we are simply living in it! If you have grown up watching Miley Cyrus transform into Hannah Montana with the switch of a wig, the Hannah Montana 20th Anniversary Special must intrigue you. In simple terms, it is the grand celebration of the Disney Channel series turning 20 and the Friends-esque anniversary special has reestablished yet again, Miley is never going away.While the anniversary special was a reminder for fans about the greatness of Hanna Montana, it did have its moments of mirth and boredom.