The 20th anniversary of Hannah Montana is here! And to honor the special moment, Miley Cyrus put the iconic blonde wig back on to look back on the legendary Disney Channel series all these years later. There are a few familiar faces who appear on the special alongside her or attended the premiere this week, except for two notable figures - Emily Osment and Mitchel Musso, AKA Miley Stewart's best friends! However, they still celebrated the amazing feat in heartfelt Instagram posts on Monday! Hours before the premiere of the special, Emily, who portrayed Lilly Truscott, shared a video with her c...