Some controversy and sharply divergent views exist on Sandeep Reddy Vanga's "Animal," starring Ranbir Kapoor, Rashmika Mandana, Anil Kapoor, and Bobby Deol. However, one thing everyone agrees on is that the introductory song for Bobby Deol in the film is foot-tapping and has become a rage, inspiring dozens of memes. NDTV's Uma Sudhir spoke to music composer Harshvardhan Rameshwar and seven young singers who have become a sensation overnight.