Tanuja Chandra's "Zindagi Rocks" will have another rocking factor to it - Sunidhi Chauhan's voice, apart from the unique combination of Shiney Ahuja and Sushmita Sen.

Chandra and composer Anu Malik have roped in Sunidhi to sing for Sushmita, who plays a rock star in the movie. They chose the young singer because of her unique voice texture.

"Both of us unanimously felt that Sunidhi could be the ideal voice for Sushmita, which is why we chose her to render all the five songs in the film," said Chandra.

The special zing in Sunidhi's voice has worked wonders for the film's music and Chandra and Malik are totally pleased with the outcome.

"Sunidhi should have been an international pop star with her unique voice. I am sure my film will unravel another quality of her remarkable voice. Also, for the first time Malik has teamed up with Sunidhi for all the songs in any film," said Chandra.