One Two Three Four is the first song of Shah Rukh Khan most anticipated movie of 2013 "Chennai Express" directed by much talented Rohit Shetty. The music of this movie is by Vishal Shekhar while lyrics are penned by Amitabh Bhattacharya. br Come Fall In Love Rohit Shetty Shytle!! Releasing Auguest 8, 2013.