Mumbai, March 12 - Filmmaker Karan Johar says he “can't wait to work” with Bollywood's “Queen” Kangana Ranaut. During a live Twitter chat session, when one user questioned: “What about Kangana? Will you work with her?”, the filmmaker expressed his desire to work with the actress. He responded: “Can't wait to work with her”. There is a lot of speculation about Varun Dhawan and Alia Bhatt-starrer “Shuddhi". Clearing the air around his production, Karan said the film will go on the floors in September. On being asked whether “Shuddhi is happening or not?”, he said it “will be happening in September-October this year”. The filmmaker, who is known for creating larger than life entertainers with films like “Student of the Year”, “Kabhi Khushi Kabhie Gham...” and “Kuch Kuch Hota Hai”, also shared that he will soon be launching new faces in Bollywood. It's not only the big screen that Karan has ruled, but the small screen also as the host of a talk show “Koffee with Karan”. While he had earlier announced that a new season is in the pipeline, this time he shared that the opening episode has to be with superstar and his friend Shah Rukh Khan “and no one else”.