How KK died: Singer performed for an hour, was ‘feeling heavy’ after reaching hotel, know all details by DNB ind News Desk June 1, 2022 0 Doctors at the hospital in Kolkata said they suspected "cardiac arrest" to be the cause of KK's death. Kolkata: Well-known Bollywood singer Krishnakumar Kunnath, popularly known as KK, died in Kolkata ...