In Pics | Rewinding to some of the finest songs by KK The nation is mourning the sad demise of popular singer Krishnakumar Kunnath, known by his stage name KK. He reportedly died of a heart attack while performing in an overpacked auditorium in Kolkata on 31 May. His demise has sent shockwaves in the film fraternity. While he leaves behind his rich legacy of soulful music that will be forever alive, here we take a look at some of KK’s mesmerizing melodies from Hindi music that will echo forever.