VIDEO : Mariah Carey' ''Bleak Diet'' and Home Lighting Helps Her Feel Her Best

Mariah Carey knows what it takes to feel her best, but that doesn't mean she always does. In fact, the singer opened up to the Sunday Times about her struggle with feeling insecure, specifically over her body image. She revealed just a few of the things she does to look and feel her best, including what she calls a "bleak" diet. She tells the publication, "My bleak diet is horrendous, but I don't want to tell anyone about it because it's none of their business.