It was composed by Sanjay Leela Bhansali and sung by Shreya Ghoshal and Pandit Birju Maharaj.
[2] The song features Deepika Padukone and Ranveer Singh in the video.
Padukone took Kathak dance lessons from Pandit Birju Maharaj, who also choreographed the song.
Shreya Ghoshal and Pandit Birju Maharaj sang in all the three versions of the song.
The song was reprised in MTV Unplugged season 6 and was also sung by Ghoshal.