Alia Bhatt and Varun Dhawan had a blast at the radio station while promoting their upcoming film Humpty Sharma Ki Dulhania.

The movie also stars Siddharth Shukla and marks his debut into Bollywood. Co-produced by Karan Johar and Apoorva Mehta, directed by debutant Shashank Khaitan, Humpty Sharma Ki Dulhania is set to release on July 11, 2014.