Watch the full title song from the movie “Bol Bachchan” Starring Abhishek Bachchan, Ajay Devgan, Asin, Prachi Desai and sung by Amitabh Bachchan, Abhishek Bachchan, Ajay Devgan, Himesh Reshamiya, Mamta Sharma and Vineet Singh composed by Himesh Reshamiya and directed by Rohit Shetty.