Mariah Carey has lost so much weight that she is as slim as a well toned teenager.

The singer claims that she now has the figure of a slim 16-year-old following her intensive diet and training regime.

She said, "I got too bulky. Now I'm down to my 11th grade size after lots of hard work with my personal trainer Patricia. It feels good, but at the same time it doesn't feel good because I can't eat what I want to eat".

Mariah recently revealed that she has her personal trainer flown in from the Caribbean to New York for training sessions.

She said, "Patricia lives in St. Barts, poor girl. People say to me, 'Only you would fly someone from St. Barts in the Caribbean to New York to work out' ".

Mariah is using the Morsel Diet, which has normal meals replaced by low-carbohydrate ones.

In 2006, Mariah claimed that the diet was her own creation and that it had helped her lose 32lbs in just four months.

She said, "I kind of invented it. Basically you can have a tiny bit of everything you want but it has to be less than a forkful".