Amitabh's granddaughter Navya Naveli (Shweta Nanda's daughter) is a big fanatic of Katy. Big B wrote on his blog, "The grand daughter has a fancy for the singer Katy Perry. I hope I have the name correct. She had performed along with several others at the opening of the IPL last night, and now Navya wants her autograph for she loves her. So efforts are on to make that happen!!!”
Big B also confessed that he was ignorant about Katy until the IPL opening night. Amitabh Bachchan has been very concerned and protective about his grandchildren. The best example is how the megastar has been successfully hiding Abhishek and Aishwarya Rai's daughter Aaradhya from the media's hawk eyes.