Alia Bhatt and Varun Dhawan have been excitedly tweeting about the countdown to the new version of 1990 chartbuster Tamma Tamma as the ‘party song’ in their upcoming film, Badrinath Ki Dulhania. But dance director Saroj Khan, who choreographed the original in Thanedaar featuring Madhuri Dixit and Sanjay Dutt, is unsure if the new-age actors can do justice to it.