Karan Johar (born 25 May 1972) often informally referred to as KJo, is an Indian film director, producer, screenwriter, costume designer, actor and television host based in Bollywood. He is the son of Hiroo Johar and Yash Johar. He is also the head of the production company Dharma Productions. He is most known for directing and producing some of Bollywood's highest grossing films in India and abroad. Four of the films he has directed, those starring Shahrukh Khan, have been India's highest grossing productions in the overseas market. The success of those films resulted in crediting Johar for changing the way Indian cinema has been perceived in the West.