Smt. S. Janaki, the gifted singer is no doubt, the undisputed melody queen of the South. She was born on 23rd April, 1938, in Pallapatla, Repalle village, Guntur District, Andhra Pradesh.
Janaki has a unique capability to change her voice and sing in a range of tones. She could sing in a child's voice or an old woman's voice or along with a Shenai quite naturally.
An article on S.Janaki : http://www.webindia123.com/personal/music/janaki.htm
Web : http://www.sjanaki.com/