''Rock On!!'' begins in Mumbai, with the rock music rock band Magik, in 1998. Joseph (Joe) Mascarhenas (Arjun Rampal) is the lead guitarist who feels the necessity to prove his worth as a musician. Aditya Shroff (Farhan Akhtar) is the lead singer who rebelled against his well-to-do family to play music. Rob Nancy (Luke Kenny) who plays keyboards and Kedar Zaveri a.k.a. KD/"Killer Drummer" (Purab Kohli) comprise the remainder of the band. After a competition is announced by Channel V, they decide to enter, as the winner will be offered an album contract and at least one music video.