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.
Alka Ajith Alka Ajith () is an Indian playback singer, best known for winning season 2 of "Airtel Super Singer Junior", a Tamil language music competition reality TV show broadcast on Vijay TV.