''Why this kola veri di,'' a song from Dhanush & Shruti Haasan starrer 3, has been leaked on the internet. The preliminary version of the song, posted by someone on the internet, has lyrics written by Dhanush and sung by the actor himself.

The songs are much awaited, especially in the wake of Dhanush’s songs in his upcoming release Mayakkam Enna, with Richa Gangopadhyay, striking an instant chord among the youth. 

A source says, ''The preliminary version of the song has been tweaked a lot after that by composer Anirudh and the final song is sounding well. The audio will be launched soon.''

It is expected that the song is in ‘Tanglish’ (Tamil and English) with words from both the languages will make it big among the college students.

To counter the leak, the makers have decided to release the number as a single. Confirming it, composer Anirudh says, ''We will launch the single in the next few days. The popularity of the rough song leaked on the Internet has buoyed us and we believe the single will be a success as well.''