Filmmaker Imtiaz Ali said that the song 'Kun Faya Kun', which was a part of his film 'Rockstar', drew inspiration from the Quran, Bhagavad Gita and Rigveda. "The line ‘Jab kahin bhi, kuch nahin, bhi nahin tha’ (When there was nothing, not even nothingness) is from the Rigveda," he said. Imtiaz said AR Rahman approached the song with immense reverence.