KBC 2021 | Who is the playback singer of this song? KBC 2021, Check the correct answer to the question - Who is the playback singer of this song? By Chirag Gaur - September 8, 2021 KBC 2021, The options for the question – Who is the playback singer of this song? Nawazuddin Siddiqui Honey Singh Rajpal Yadav Baba Sehgal The correct answer is Nawazuddin Siddiqui.