Perry wed the 35-year-old British comedian in a private ceremony in India last month, and she said that she's already wearing the trousers in the marriage.
She told UK newspaper the Daily Star: 'I am overly, compulsively and obsessively in charge of everything. I can't help it, it's just how I am.'
The 26-year-old pop star recently launched her new perfume, Purr, in Selfridges department store in London.
Speaking about the new fragrance, she said: 'Russell loves the scent, but he can't wait for everyone to start making rude jokes about it.
“I'm obsessed with cats and I'm on a single-woman [sic] mission to try to make that cat lady personality cool.”
She added: 'I'm sexy like a cat and you have to earn my affection because when I give it you, it's going to be good.'