Celebrities' Wackiest Diets: Craziest Slim-Down Techniques

Leona Lewis

The "Bleeding Love" singer dropped weight in 2010 with a strict eating plan. "I went on a detox at the end of summer last year and basically ate vegetables and nothing processed," she said in February 2010. She added that she only drank water for a month and did the detox for a "little while."

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