Answer
S. P. Balasubrahmanyam was an Indian singer, music composer, actor, and producer who worked in Telugu, Tamil, Kannada, Malayalam, Hindi, Oriya, Bengali, Marathi, Tulu, Urdu, Punjabi, Konkani, Gujarati, and Sanskrit films. He is regarded as one of the most influential and popular playback singers in the history of Indian cinema, and is often referred to as the "Voice of India".