Shehar Mein Lyrics & Video Song from Rockstar. Shehar Mein sung by Mohit Chauhan and Karthik. Song Writer: Irshad Kamil Singer: Mohit Chauhan, Karthik Movie: Rockstar (2011) Music Composer: AR Rahman Music Label: T-Series Starring: Ranbir Kapoor, Nargis Fakhri Release Date: 11/11/11 Director: Imtiaz Ali