17 celebrities you didn't know were vegan

mike tyson

Omar Vega/Invision/AP

Mike Tyson.

Diet trends are everywhere in the celebrity scene - some stars will try any fad, no matter how insane.

But others have embraced their diet as a lifestyle, and have gone vegan, which is defined as a "way of living which seeks to exclude, as far as is possible and practicable, all forms of exploitation of, and cruelty to, animals for food, clothing, or any other purpose."

Here are 17 stars you never knew were vegan.