Mariah Carey has gone on a fish-only diet.
Mariah Carey
The 'Hero' hitmaker is determined to shed the pounds ahead of her wedding to James Packer and has resorted to extreme measures to lose weight.
A source said: "Mariah has salmon for breakfast, sole for lunch and tuna for dinner."
The one bright spot in Mariah's diet is just one portion of fruit a day, but the tough regime is already paying off as she has dropped a further 15lbs after further restricting her previous low-carb eating plan.
However, after dropping two dress sizes already, her billionaire fiance is keen for her not to lose any more weight.
The source told heat magazine: "James is worried she will lose her curves.
"He's told her she should slow down as it's her bum and cleavage he adores."
The 46-year-old star - who has four-year-old twins Moroccan and Monroe with ex-husband Nick Cannon - previously admitted she was on a very "bleak" diet.
She said: "My diet is very bleak. I overuse the word because there is a lot of bleakness going on. My bleak diet is horrendous, but I don't want to tell anyone about it because it's none of their business. I just don't want people commenting."
Tagged in Mariah Carey