Mariah Carey's fishy diet

Mariah Carey is living on plain fish and soup in a bid to shed the excess pounds.The beautiful diva has taken all calorific treats off the menu until she reaches her target weight.She told America's People magazine she's been on a "really bleak diet, which is basically soups and fish prepared really blandly".However, it's unlikely Mariah will ever get too skinny - because she's terrified of losing her sexy curves.The stunning star has said although she likes working out she can't exercise too much in case she loses her ample butt.She told Britain's Daily Mirror newspaper: "I've been working out like mad - you can even punch me in the stomach and feel how tight that is."But I've gotta slow it down because the other day someone told me I was losing my ass - and I don't want to lose that."