Katy PerryKaty Perry has some strong words for us all, so listen up.

"The rack is real" is her message.

But what's all this knocker nattering about?

Well, the ever so vocal Katy is biting back at rumours.

She's narked at suggestions floating round that she's had work done on her boobs.

Katy told Heat: "How could people think these are fake?

"Look at 'em. Ask them. They are as real as real can be.

"One hundred per cent genuine and untouched... well, sort of.

"I would never spend money on fake boobs.

"Shoes, maybe. A handbag, maybe. But plastic tits - no way."

But don't think she's anti a nip/tuck altogether: "I am not against people who get things done. A tuck or a lift never hurt anyone.

"In 50 years time I may look like a Siamese cat in a wind tunnel - but as of this moment, the rack is real."

... Sorry, have you finished? We were still imagining her in 50 years time.

Check out some other stars with norks as nature intended in our gallery below.