It is true that we all are waiting to see Varun Dhawan reminisce Salman Khan in 'Judwaa' remake and now the first teaser song of one of the yesteryear's favorite track 'Chalti Hai Kya 9 Se12' is out. The video is a 20sec teaser, stay tuned for the the entire song. This will be the first song release for the film. It also sees another rehashed version of the first film titled 'Oonchi hai Building'.