5 Weird (And Extreme) Celebrity Cleanses

What: Bleak Diet

During this diet, you must eat only fish and soups. Worst part? It must be prepared blandly.

READ: 5 Most Bizarre Celebrity Beauty Treatments

What: Master Cleanse

To prepare for her role in "Dream Girls," Bey did an all-liquid Master Cleanse which consists of only hot water, maple syrup, cayenne pepper and lemon juice. She lost about 20 pounds, but has said she'll never do it again.