Bollywood superstar Shah Rukh Khan who unveiled the trailer of his upcoming film Zero on the occasion of his birthday on Friday said that he was touched by the gesture of Salman Khan doing a cameo in the film. During the trailer launch of the film when he was asked about how Salman came on board, Shah Rukh told the media: "Anand (L. Rai, Director) has spoken to Katrina (Kaif) regarding this film quite sometimes ago and that time Salman also heard the story.

"Then Salman called and said that there was this story and hear it. The coincidence is that, when finally, I said yes to the film, after that he said that I will be a part of this film for sure, by doing a song. That was very dignified and loving of him."