Shah Rukh Khan, Gauri Khan, Alia Bhatt, Sidharth Malhotra all set to fly to London!

Shah Rukh Khan, wife Gauri, Alia Bhatt and her boyfriend Sidharth Malhotra are all set to fly to London this weekend, but no they aren't going there for a holiday or a film shoot. They are going to London for a party, but it ain't going to be like any other party...