Musical movie called “Rock on” was ready to be filmed. For saving the cost of the budget, the casting producer named “Senior Tsai”, picked up his roles from the rejects of an audition. Such as kid from Hong Kong, he can both write and sing, Candy, a girl who’s just like the Barbie doll, and LaReine, a snappy girl who could dance hip-pop to the top, together they co-starred this new title. For creating more topics, Tsai he called up Johnny, who used to be the hottest idol, to helm this musical film and train the new hopefuls he had seek. Progressively, the shooting got started and this has-been idol, Johnny, he eagerly hoped this movie would win him his come-back moment. Then, he met his old lover, Mable, who encouraged Johnny to cherish this precious opportunity to come up in the world. Striving for the best dancing performance, Johnny called for the help of his past crew, Tiger who’s now a professional and exclusive choreographer of some big stars, asking him to work on the choreographing and dancer’s training of this movie. Gradually, under Tiger’s regimented requests, everybody reached the level of the professional standards.