Chennai: Actress Shruti Haasan, also a popular playback singer, has reportedly been roped in to croon a special song for Tamannaah Bhatia in the upcoming Tamil comedy "Kathi Sandai", which stars Vishal. "Shruti has been approached and she has given her nod to sing. The recording will happen soon. It'll be a special song on Tamannaah, and will be lavishly shot," a source from the film's unit said. Featuring music by Hip Hop Tamizha, it's the film's director Suraj, who felt Shruti's voice will be apt for the song. The film, which is gearing up for Diwali release, also features Vadivelu and Soori.