Ali Zafar will perform live to promote Mere Brother Ki Dulhan.

The Pakistani pop singer-actor says, "Yes, that's the plan. I have been told Katrina and Imran will be joining me on stage. Agreed, they are not musicians but, at the end of the day, we're all performers and part of one project."

Movie stars performing on the songs of the film, just before its release, is the newest publicity trend.