'Rock On Revisited', the title song from the Farhan Akhtar and Shraddha Kapoor starrer 'Rock On 2', was released on Wednesday. It is a revised version of the title song of the original film 'Rock On', which released in 2008. The new version has been sung by Farhan and Shraddha, and composed by music director trio Shankar, Ehsaan and Loy.