Raja Ranguski has launched its audio today at Suryan FM Chennai and the makers have shared its first video song titled Kaadhal Gaana. The peppy tune composed and arranged by Yuvan Shankar Raja gets an ethnic touch with M Mahalingam's voice and his rendition. Penned by Mohanrajan, the song features a key sequence of the movie. The music rights of this movie starring Metro Shirish and Chandini Tamilarasan has been acquired by Think Music India. Dharanidharan has written and directed the movie which is set to hit the screens very soon.