KK, a popular singer, died Tuesday night at the age of 53. He was in Kolkata to perform at Nazrul Mancha in a live event. According to reports, the singer felt uneasy when he arrived at his hotel room after his performance and fainted. In the midst of all of this, a video from the event showing the late singer sweating profusely has gone viral. A video of the legendary singer, affectionately known as KK, rushing out of the event after apparently complaining of chest trouble went viral on social media hours prior to his death.