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.
Sonika Chauhan Sonika Simone Singh Chauhan (12 July 1989 – 29 April 2017) was an Indian model, actress, and a TV host. She was a contestant at "Femina Miss India" and "Miss Diva - 2013". She was also a VJ for Channel V, anchor of "Pro Kabaddi League" in Star Sports and hosted a show at NDTV Prime.