"I like things that are different, I'm very girly," the New York Daily News quoted Katy as saying. "It (bodysuit) reminded me of something a teenage girl would wear to a dance class ... and it wasn't just like, here's a T-shirt!" Katy added.
The bodysuit features an abstract pastel print of human insides - heart, kidneys and all - and reads on the back: "It's what's on the outside that counts. We live in a materialistic world. We live in New York City, so we don't like to think about the heart and the head - we like to think about labels and designers."
Katy hopes that the irony of her slogan will help people to think about the ideals that Fashion Against AIDS intends to promote, which are self-awareness, self-respect and, of course, safe sex. Katy declared her line "is about the heart, and about helping and educating people about the fight against AIDS."
"I'm 24, I dress for my age and even a little bit younger. I don't play it safe and I don't think I have to play it safe yet," Katy added.
The line designed by celebrities will be sold in the High Street firm's Divided departments to help raise HIV/AIDS awareness.