Shah Rukh and Preity bat for green earth!

New Delhi, April 21 (IANS) Bollywood actors Shah Rukh Khan and Preity Zinta have joined hands with the National Geographic channel to urge people to make earth a cleaner and greener place to live in.

Dedicated to World Earth Day, the channel here Monday launched a special music video titled "Earth - A Song for Life" and messages by actors Shah Rukh, Preity, Kunal Kapoor, Rahul Bose and Science and Technology Minister Kapil Sibal on the Internet.

The lyrics have been penned by Sameer of "Sawaariya" fame, Sandeep Chowta has composed the music and Bangalore-based music band Karma6 has lent its voice for the song that inspires people to care about mother earth.

"The sole intention of the music is to inspire viewers and listeners to realize that even one small step can he