London: Pop singer Katy Perry says she doesn't want to be recognised when she's not working and therefore goes out in disguise.

The 27-year-old, who recently divorced Russell Brand, steps out in wigs and hats to dodge people, reported a magazine.

"I didn't really ask for that but it is just a product of all this. I deal with it when I am working, but when I am not working, I pop a wig on, some hats on, a granny knit and I go out of the kitchen. I do my best to be avoided when I want to be avoided," Perry said.

"It is what I have to do, it is the environment I am in completely. I know how to separate it completely. You don't see me everywhere, you see me when I am working," she added.