Why This Kolaveri Di Full Song Promo Video

Why This Kolaveri Di is an Indian song from the soundtrack of the upcoming Tamil film 3, which is due to be released in 2012. Written and sung by Dhanush, the song was composed by debutante music director Anirudh Ravichander.

The song was officially released on 16 November 2011, and it instantly became viral on social networking sites for its quirky “Tanglish” (portmanteau word of Tamil and English) lyrics.