We have already reported that Dhanush has sung a song for his brother Selvaraghavan's Irandaam Ulagam. Though music composed by Harris Jayaraj is all set to hit the stores from August 4, we hear that the single track sung by Dhanush will be launched tomorrow on Suryan FM. This bilingual period film has Arya and Anushka in lead roles.

Dhanush posted on his twitter page, "the song i sang for my brother in irandaam ulagam releases tom. it was nice singing in harris music. namma style song !! hope u guys like it."