Kangana Ranaut's sister Rangoli reacts on celebs. Karan Johar's house party video featuring Deepika Padukone, Arjun Kapoor, Vicky Kaushal, Varun Dhawan, Malaika Arora, Shahid Kapoor and Ayan Mukerji, among others, went viral after the director put it up on his Instagram on late Saturday night.