For their forthcoming film, Imran Khan and Kangana were literally glued to each other during the shoot of the song "Lip to Lip". The actors who have kissed for over 24 hours to shoot the song have shot it in a unique way.

As per our sources, this particular song was shot using the technology of "Stop Motion" which has been used for the very first time in a bollywood film. Here is the sneak peak of the visual wherein we see Imran and Kangana kissing throughout the day for the video of the song! The song was shot for over 3 days which only had the lead actors kissing each other. The song has been launched by the makers and the reaction which has been received on same has been wonderful!

Nikhil Advani's 'Katti Batti' will see Imran and Kangana paired opposite each other very first time. The film is all set to hit theaters on 18th September 2015.