'Kar Gayi Chull', the first song from the upcoming film, 'Kapoor & Sons', released today on YouTube. Touted as the 'Craziest House Party Song of the Year' by Sony Music India, the video features the lead pair of Alia Bhatt and Sidharth Malhotra. The song has been composed by Badshah and sung by Badshah, Fazilpuria, Sukriti Kakar and Neha Kakkar.