Hannah Montana is the stage name of Miley Stewart, a teen pop sensation known to millions. Her best friend Lilly is the only one who knows the truth -- or so she thinks. Someone is threatening to reveal Hannah's secret! Miley and Lilly investigate their school, the boardwalk, stadium and the beach to uncover clues. Help solve the mystery and keep Hannah Montana's secret safe, so the show can go on! Access Hannah's secret wardrobe and design personalized clothes to share with others via the wireless mode on the DS.