Aishwarya Rai Bachchan's comeback film is full of surprises. News of the blue eyed beauty gearing up for playback singing in 'Jazbaa' is currently making headlines.

Though she wants to take up the challenge, she will discuss about it while track is being shot. As the film is an action packed movie, it won't have any dance numbers besides a club song.

Many music directors have contributed to the film's music suggests a report.

A source says, "Aishwarya has been sounded about it by Sanjay who feels she can do it. She has a very musical voice and is often known to hum tunes. Several music directors have contributed to the album and the director has a great number in mind for her. Ash seems to be up for the challenge."

Hope she takes up the challenge and unleashes yet another facet of her personality.