Karan Johar turns host for B-town celebs and Katy Perry!

Karan Johar has hosted a house party that turned into a star-studded affair. The Bollywood bash was held at filmmaker's Mumbai residence to welcome American singer Katy Perry in the city. 
Seems like filmmaker Karan Johar is the best host in the town! The director on Thursday evening threw a grand party welcoming several B-towners along with American singer Katy Perry being the centre of attraction!
The 'Roar' singer who landed in India a few days back to perform at a music festival on Saturday, exchanged hugs and handshakes with people from the film fraternity including Aishwarya Rai Bachchan, Alia Bhatt, Jacqueline Fernandez, Kiara Advani, Ananya Panday, Neha