'Jab Tak Hai Jaan' song launch event was first of its kind as the duo wasn't present together in the venue for the launch. While SRK was present at the event, Katrina joined her co-star via Skype, as she is busy shooting for Yash Raj's 'Dhoom 3' with Aamir Khan in Chicago.
Know more about 'Jab Tak Hai Jaan' here: http://www.moviezadda.com/movies/jab-tak-hai-jaan