There are fresh updates that Rajini sing a song for his upcoming movie Kochadaiyaan. The film expected to take off exactly a week from now on March 21st, has the Superstar appear in his first ever 3 D role. Making preparations for the shoots, daughter and director Soundarya came up with the idea of getting Rajini to sing a song in her debut release. The song comes in at a very emotional moment and Rajini lending his own voice has only added richness to the shots. says a source. This particular track will be on the lines of Sivaji Ganesan s Thendralodu Udan Pirnadal , from the classic flick Raja Raja Cholan.