During the grand finale of Kaun Banega Crorepati season 17, host Amitabh Bachchan delivered an impromptu 32-minute singing performance of classic and traditional songs. The emotional gesture, performed at age 83, aimed to lift spirits after a season recap video. Bachchan sang hits like 'Hori Khele Raghuveera' and 'Rang Barse,' captivating the audience who joined in. The finale also featured celebrity guests promoting films and a special appearance by Bachchan's grandson, Agastya Nanda.