TMDb/Hannah Montana TV Relive the Hannah Montana 20th anniversary special on Disney+, celebrating Miley Cyrus and the cast. But why were Emily Osment and Mitchel Musso missing? May 5, 2026 AceShowbiz - Hannah Montana celebrated its 20th anniversary with a special event on Disney+, eagerly anticipated by fans around the world. The reunion brought together several key cast members, including Miley Cyrus, her father Billy Ray Cyrus, and co-stars Jason Earles, Moisés Arias, Cody Linley, Shanica Knowles, and Anna Maria Perez de Tagle.