'We are hoping for a successful Diwali. There is a lot of buzz about the film ('Son of Sardaar') and as the music director of the film, I am very, very confident of the film,' the 39-year-old said here in an interview.u00a0'Of course, 'Raani tu main Raaja' has already become popular and everyone is liking the title track. So, I am very confident of the music after 'Bodyguard' and 'Bol Bachchan',' he added.