Mariah Carey has lost so much weight she can fit into her high school jeans.

The 'Touch My Body' singer - who has stunned fans after losing a reported 30 lbs - couldn't be happier now she is the same weight as when she was 16.

She said: "My jean size went down to my 10th grade size. I got tired of people telling me, 'You need to lose weight.' That's what inspired me."

"For me, it's not about a number on a scale. It's not about necessarily even a size. It's about feeling good and being comfortable in your own skin. Right now, I feel really great. I feel better than I've ever felt."

Mariah also revealed she found it most difficult to give up her favorite meal, macaroni and cheese.

She added to TV talk show host Oprah Winfrey: "It broke my heart. That's the thing that I have difficulty letting go of because that's comfort food. So basically I'm uncomfortable."

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