Mariah Carey, Workout Maven?

She's been up, she's been down, but the newly slim Mariah Carey says that she owes her svelte shape to a strict training regiment and workout routine. And in an interview with UK paper The Sun, Mariah even hinted that she might be taking her exercise secrets public.

“I think people should be a size they’re comfortable with but when you’re constantly having your picture taken and on TV like I am, well I could see I really did need to lose some of the bulk," said Mariah, who in recent months, dropped nearly 30 pounds.