Pop superstar Mariah Carey's most recent workout regime has given her the body of a teenager - literally.
The singer, 38, reveals she can now wear her high school wardrobe.
She says, "My jean size went down to my 10th grade size."
As well as rigorous workouts, Carey has cut out fatty foods and items cooked in butter, which she insists hasn't been easy - because it meant giving up her beloved macaroni and cheese.
She adds, "It broke my heart... That's the thing that I have difficulty letting go of because that's comfort food."