The 42-year-old star revealed her trim new figure on an appearance on Rosie O'Donnell's The Rosie Show.
In typical diva fashion, Mariah was lowered on to the set reclining on a crescent moon showing off her legs and cleavage in a tight micro-mini and a low-cut black leather jacket.
She says her weight loss of over 70lbs included a 40lbs water loss due to her difficult pregnancy: "In the beginning, when I first had the babies, I had so much edema ... water and swelling. Most pregnant woman have that just in their feet, one day I was doing my thank-you notes and I noticed it started rising up the leg, so I had edema. ... I didn't think I would ever be the same person."
Mariah went on to explain that she used the Jenny Craig (now just known as Jenny) weight-loss programme to fight the flab, and is now a spokesperson for them... quelle surprise...
Do celebrity mum's weight loss stories inspire you, or are you fed up with them?
Do you think it is far easier for celebs to get back into shape than us mere mortals?