KK, or Kumar Sanu, is a renowned Indian playback singer known for his work in the Hindi film industry. He gained popularity in the 1990s with his melodious voice and has recorded thousands of songs across various languages, including Bengali, Tamil, and Telugu. His contributions to music have earned him numerous awards, making him a prominent figure in Indian music. In addition to his singing career, KK has also performed in live concerts and collaborated with various artists. His ability to evoke emotions through his songs has made him a favorite among fans, solidifying his legacy in the world of Indian music.