The first song of the much-awaited 'Yash Chopra film' 'Jab Tak Hai Jaan', Challa sung by Rabbi Shergill was released on the YRF YouTube channel at 12 noon today. Starring Shah Rukh Khan, Katrina Kaif and Anushka Sharma, the film brings together the Oscar winning pair of A.R. Rahman and Gulzar. Yash Chopra, who recently turned 80, in conversation with Shah Rukh Khan on the occasion had said, "This is my favourite song and it is your song in the film. It is the soul of the film - you belong to everybody but nobody is yours. This song is in Punjabi language and it has been sung beautifully by Rabbi Shergill. Gulzar Saheb has written the lovely lyrics. He has given words to my vision. Working with AR Rahman and Gulzar, is like working with magicians." '

Jab Tak Hai Jaan' is set to release on November 13.