In an earlier recorded interview Singer KK tells RJ Salil of Radio City how he recorded Tu Jo Mila song of Bajrangi Bhaijaan entirely in Sydney where he was on vacation with family. Well-known Bollywood singer Krishnakumar Kunnath, popularly known as KK, died in Kolkata on Tuesday night, officials said. He was 53. KK was feeling unwell after reaching his hotel, following a performance at a concert in the evening where he sang for almost an hour, officials said.