Bollywood producer Ritesh Sidhwani said the filming of `Rock On!! 2?`, a sequel to the hit 2008 musical drama, will start during the end of August 2015. The film will be shot in the hilly terrain of Shillong, Meghalaya. `Rock On!! 2` starts at the end of August and the film will release next August. Shraddha Kapoor is the newest addition to the sequel. The `Ek Villain` star joins the previous star-cast including Farhan Akhtar, Arjun Rampal and Pracchi Desai. Shraddha is also set to croon for the movie after lending her voice in `Haider` and `Ek Villain`.