Later, he posted a video where Shah Rukh teaches him how to groove to "Lungi dance" -- the catchy number from his blockbuster movie "Chennai Express". Since the music wasn't available, the charmer that Shah Rukh is, he took the mike and sportingly sang the song as well as taught Ratner some of the steps. Ratner followed the steps well, and hugged Shah Rukh, who has spent a quarter of a century in Indian showbiz and is one of Bollywood's most known faces across the globe