Actress Raveena Tandon said filmmaker Karan Johar was scared of using her name in 'Kapoor & Sons' song 'Kar Gayi Chull'. "Karan said, 'I want your permission to use your name'. As soon as I heard that, I was like, 'How sweet? Of course, you can use'," said Raveena. She added that Karan was scared of her husband Anil Thadani.