Actress Shruti Hasan is a fabulous singer and she had earlier rendered for a couple of songs in Bollywood and Kollywood. Here is the exciting news !!! The actress has sung a number 'Down Down Duppa' in the upcoming movie 'Race Gurram'. S S Thaman has composed some peppy and trendy songs for the movie.The film stars Allu Arjun on the male lead and Shruti will be seen playing the female protagonist role. Actress Saloni will also be acting in 'RG' as the second lead. The shoot of this song recently took place at Ramoji Film CIty and the makers are planning to release the movie soon. Directed by Surendar Reddy, RG is being produced by Nallamalupu Bujji.