Bol Bachchan is an upcoming Bollywood romance comedy film directed by Rohit Shetty. The film stars Ajay Devgn, Abhishek Bachchan, Asin Thottumkal and Prachi Desai in lead roles. The film is expected to release on July 6, 2012. It is inspired by the 1979 comic flick, Gol Maal. Fox Star Studios bought the theatrical rights for 94 crore Indian rupees. Its official trailer got released on 24 of May 2012. Source: Wikipedia
Who is the best playback singer in Bollywood?