Nikhil Advani later announced that Deepika Padukone is essaying a double role in the film. Deepika Padukone plays a Chinese woman and an Indian woman. Chinese superstar Gordon Liu will make his Bollywood debut in this film. The music is by Shankar, Ehsaan and Loy. The movie also features music by Kailash Kher, Bappi Lahiri-Bappa Lahiri and a rap song sung by Akshay Kumar and composed by Punjabi rapper Bohemia. The music was released on December 2nd 2008