But he’s not the only one who catches you by surprise. First timer Prachi Desai, who’s been on TV before this, is very effective — coolly glamorous but nicely understated. Arjun looks like he could really be strumming that guitar, and Luke knows his way around the keyboard. The two best written parts go to Purab (His straight Gujju boy, who’s actually a wild rocker at heart, is a complete hoot), and Shahana, who steals every scene.

“Rock On” has to be one of the best shot Hindi films in recent times. Jason West’s atmospheric cinematography is superb. So is Shankar Ehsaan Loy’s sound. And despite its thoughtful pauses, and one mercifully quickly over maudlin patch, it leaves you smiling. Watch it. And then listen to it.