The soundtrack, composed by Harris Jayaraj, consists of six songs including a Chinese track, sung by Chinese singer Wang Hao. It marks the second collaboration of Jayaraj and Murugadoss after the success of Ghajini. Lyrics were penned by Madhan Karky. The audio rights of the album were secured by Sony Music reportedly for a whopping amount. The composition of the soundtrack took place in Singapore. The audio was released on 22 September 2011 in Chennai Trade Centre in a grand manner. The event was hosted by Jai and Anjali, lead pair of Murugadoss' production Engeyum Eppodhum, while Bollywood actress Isha Sharvani, Lakshmi Rai and several international artists performed on stage, which were choreographed by Shobi. Actors Dhanush, Karthi, Jiiva, Jayam Ravi, Vishal Krishna and Ram Charan Teja attended the function, with Dhanush releasing the trailer. Though initial reports said that Shahrukh Khan would appear in the launch, it was later dismissed.