Ranbir is happy that Mohit has sung for him in his forthcoming "Barfi" too.u00a0"'Barfi' is a very special film and it release Sep 14. Mohit babajee (Mohit Chauhan) has sung the title song 'Aala re Barfi' and I am very happy. A singer generally doesn't get the credit for the importance he brings to the career of an actor," the 29-year-old said here in an interview.u00a0