The 'PK' team is all geared up to release a song trailer of the much awaited film. And interestingly, it is reported to be a special tribute to Sanjay Dutt. Since director Rajkumar Hirani is close to the actor (who is currently serving jail sentence) was the man behind the idea. In fact the team are planning to launch the song in big way.

The song titled Tharki chokro` is a Rajasthani song featuring Sanjay Dutt and Aamir Khan. Sanjay Dutt addresses Aamir Khan as Tharki chokro in the song. It is a classic song and has a very catchy tune.

Rajkumar Hirani wanted a Rajasthani feel for a song in his 'PK'. For this, Rajasthani singer Swaroop Khan has been roped in by Hirani. Swaroop Khan was a very popular contestant on a singing reality show and was very appreciated for his singing talent. Hirani felt Swaroop Khan would do complete justice with his Rajasthani folk music.

On the other hand, the song is very special for Swaroop Khan as it the first time he has sung for such a big project.

'PK' also starring Anushka Sharma and Sushant Singh Rajput is set to release on 19th December 2014.

Watch 'PK' Trailer