Dhanush,Shruti Haasan's upcoming movie 3 is set to come up with pack of surprise features.We have earlier updated that Dhanush and Shruthi Hassan to share liplock kisses in the movie and latest we hear that both the lead stars are going to sing a song in the film.

Aishwarys Dhanush is debuting as director with Dhanush's 3.Dhanush and Shruti Haasan has rendered thier vocals for a duet song in 3.The recording of the song has been finished on 1st october.Dhanush has penned the lyrics for the song.

Debutant music director Anirudh is composing tunes for 3 film.The shooting of the movie is going at brisk pace in Chennai.