Harris Jayaraj, who is already done with three songs in 'Nanban', has now completed the fourth one too. The music composer is happy with the output of the number, sung by Vijay Prakash and Sunidhi Chauhan.

'Nanban', directed by Shankar with Vijay, Jiiva and Srikanth playing the lead roles, is a remake of Hindi hit '3 Idiots'. This is the second time for Harris to join hands with Shankar, with the first one being 'Anniyan'.

"Just finished the fourth song for Nanban. It has come good," says the music director, who is also upbeat about his other venture, the Suriya starrer '7am Arivu', directed by AR Murugadoss and produced by Udhayanidhi Stalin's Red Giant Movies.

"The final mix of 7am Arivu is over. Audio will be launched on September 10," he wrote on his microblogging page. Earlier, Harris tweeted that 7am Arivu has a Chinese song and he is satisfied with the outcome.