Airtel Super Singer 4 included a guest judge who was a veteran singer of what languages?
L. R. Eswari Lourde-Mary Rajeswari Eswari (L. R. Eswari) is a veteran playback singer of the Tamil cinema, Telugu cinema, Malayalam cinema and Kannada cinema industries. She also sang in other languages like Hindi, Tulu, and English.
Shailendra Singh (singer) Shailendra Singh (born 4 October 1952) is an Indian playback singer and actor. He sang several Hindi and few Marathi songs during the late 1970s and early 1980s.