The most awaited event of this year- IIFA 2017 has already kickstarted in New York with our Bollywood celebs. During the event, Salman Khan and Varun Dhawan danced on Judwaa 2's Tan Tana Tan. For all Salman fans, it was a moment when childhood just flashed back in their eyes. And we are sure, you would have a similar feeling after watching the video.