Imran Khan and Sonakshi Sinha launched the fun peppy 'Tayyab Ali' number from their film 'Once Upon A Time In Mumbaai Dobaara!' and even danced on the song. Both then spoke about the film, the song and their experience. Imran amazed mediapersons when he said that he feels that his chemistry with Sonakshi is better than her chemistry with Ranveer Singh in 'Lootera'. Don't miss!