Ace filmmaker Karan Johar hosted a star studded party for international singer Katy Perry which was attended by some of the biggest names from Bollywood. Several renowned names right from, Aishwarya Rai Bachchan, Abhishek Bachchan, Anushka Sharma, Alia Bhatt, Shahid Kapoor, Ananya Panday, Kunal Kemmu, Sanjay Kapoor, Dinesh Vijan, Kajol, Karisma Kapoor, Arjun Kapoor, Malaika Arora and more attended the bash. The stunning lady is all set to perform in Mumbai on November 16 alongside other stars. She said in a statement, “I am so happy to be returning to India and excited to headline my first-ever performance in Mumbai." Check out some of the pics from Kjo's big party here.....