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.
Rajeev Khandelwal Rajeev Khandelwal (] ; born 16 October 1975) is an Indian television and film actor, singer and host. One of the most popular Indian television and film actors he has established a career in Hindi television shows and films. He is a recipient of many awards for his different performances.