This paper presents an interactive media installation that aims at providing users with the experience to sing like an opera singer from the 19th century. We designed a set of tangible and body-related interaction and feedback techniques and developed a singing voice synthesizer system that is controlled by the user's mouth shapes and gestures. This musical interface allows users to perform an aria without real singing. We adapted techniques from 3D body tracking, face recognition, singing voice synthesis, 3D rendering and tangible interaction to integrate them into an interactive musical interface.