Ranbir Kapoor, Katrina Kaif and Anurag Basu all are gearing up for release of their next film 'Jagga Jassos' and they are leaving no stone unturned to make sure that the film is a massive hit. The USP of the film is singing dialogues of Ranbir Kapoor as Jagga. Check out here the reason behind the singing dialogue of Ranbir.