Katy Perry prefers her men to trim their pubic hair.

The 'Dark Horse' hitmaker insists she would rather it if the men she gets intimate with are well-groomed.

She shared: ''If your teeth and nails are good, you're a candidate. If you can't clean under your nails and you want to touch me, forget it.

''And personally, the less hair, the better. I like a trimmed man but not completely waxed. I'm not into that f***boy look.''

And the 30-year-old star also revealed there is a certain fragrance which always takes her back to memories of her first boyfriend.

She said: ''If I meet a guy in the elevator who's wearing Acqua di Gio, I think of my first boyfriend. One of my favourite things about fragrance is the powerful memories associated with it.''

And when it comes to herself, Katy loves a vanilla-based fragrance because she likes to ''be edible''.

She told Glamour magazine: ''My signature scent now is, and always has been, a blend of vanillas. And I never spray it on my skin. I spritz and walk through--or levitate through. I like to spray it on my hair too.

''With Mad Potion, the two main ingredients are exotic vanillas and androgynous musks. It's definitely a sweeter perfume. I like to be edible. I want somebody to ... eat me.''