Megastar Amitabh Bachchan is known to keep pace with evolving forms of social media and acing them like a boss. So when Bollywood went on an overdrive with their latest obsession, dubsmash videos, everybody sure missed Bachchan Sr. on the platform. While Big B may have been waiting for the opportune moment to make his dubsmash debut, actor Ranveer Singh thought of cutting short the wait in the most epic fashion!