The music launch of Arya-Nayantara starrer Raja Rani, directed by debutant Atlee, will take place on August 23. Meanwhile, a single track 'Hey Baby' was launched on a popular FM station today. Music is composed by G.V. Prakash and Think Music has acquired the audio rights. The team is likely to release the trailer along with the songs.

The film revolves around the life of a newly married couple Raja (Arya) and Rani (Nayantara), who are entirely different from each other. Produced by Fox Star Studios and A R Murugadoss Productions, the Arya- Santhanam duo is expected to tickle the funny bone in this flick too. Sathyaraj too plays an important character in the film - that of Nayantara’s father.