Director & Producer Karan Johar recently hosted a grand First birthday party of his kids Yash Johar & Roohi Johar which was attended by many star kids. Karan Johar's twins Yash and Roohi turned one year old. From Kareena Kapoor Khan's son Taimur Ali Khan, Rani Mukerji’s daughter Adira, Shah Rukh Khan’s little star AbRam, Aishwarya Rai Bachchn's daughter Aaradhya Bachchan, all came to ring in Yash and Roohi’s special day. Watch video.