The Touch My Body singer - who has released a number of fragrances in recent years including Lollipop Bling and Butterfly - is not a fan of "overpowering" fragrances and believes being pregnant with her first child has heightened her sense of smell.
Mariah - who is married TV host Nick Cannon - said: "I'm so super sensitive about all things scented, being pregnant right now I can't even believe how heightened the sense of smell is.
"So I think I do have a really discerning nose and this is the thing - I hated perfume, I hated cologne, I hated that when you walked into an elevator and somebody just, it's sort of like invading your space. I hate overpowering, heavy scents."
Despite Mariah Carey being overpowered by heavy smelling perfumes, she is craving fruit, providing it is "really good".
She told the Home Shopping Network: "My fingers obviously swelled a little bit. I can't even get this ring off if I tried. My taste bud situation is unparalleled... I don't know what it is, but I'm just about fruit for some reason. It has to be really good for me to like it."