Supernova will be making a special cameo appearance in SBS's upcoming drama, "Sign." The drama's pilot episode will begin with the murder of an idol group leader, 'Seo Yoon Hyung' (played by Geonil), who was killed during a concert. The rest of the Supernova boys will take on the role of 'VOICE' members for a total of three episodes. Supernova's real-life agency building and choreography room were used for the drama's filming.  The boys commented, "The filming wasn't difficult, as we already have prior acting experience from a Japanese movie.  We're worried about whether our fans will be surprised since the plot itself is stimulating, especially with real idols playing the roles." The group will also be participating in the drama's OST. Source + Photos: Newsen via Daum