Sarah Silverman has been a vegetarian ever since she witnessed a turkey get killed on a farm when she was a kid.
Singer Kellie Pickler was a meat-loving country gal but says she didn't struggle too much giving up animal products.
Vegetarian Ke$ha wrote an angry letter to the CEO of McDonald's decrying their chicken slaughtering process.
No bangers and mash for Brit It girl Alexa Chung. She's a vegetarian!
Ne-Yo tweeted about his challenge to go vegan starting on New Year's 2013.
If being a vegetarian means we'll look like Christie Brinkley when we're 60, we're all about it.
Glee star Dianna Agron is a vegetarian and PETA supporter.
Lea Michele has spoken out often about her love of animals and her vegan diet.
Emily Deschanel is a vegan and has said she will raise her baby on a vegetarian diet.
Believe it or not, tough guy Mike Tyson is a vegan! He went on a severe detox from drugs and threw animal products into the mix.
Carrie Underwood has been meat-free for years, but has admitted to struggling with her now-vegan diet.
Russell Simmons has said that trying yoga made him want to try eating healthier, which led to him becoming vegan.
He's known for indulging in loads of things in the past, but Russell Brand was named PETA's sexiest vegetarian in 2011!
Do you think Prince and Zooey Deschanel bonded over their veganism on the set of New Girl?
Paul McCartney has been a vegetarian for decades, with his now-deceased wife Linda writing vegetarian cookbooks and converting many of their friends.
Milo Ventimiglia loves taking care of his body, which includes vegetarianism.
Jason Mraz has said that his plant-based diet makes him a better "lover." Intriguing!
Jared Leto says that veganism and yoga are the explanation for his lack of aging.
Rooney Mara debuted her vegan diet with like-minded actors at the Sundance Film Festival.
Forest Whitaker has said that going vegetarian was one of the best decisions he ever made.
Game of Thrones star Peter Dinklage is a vegetarian due to his love of animals.
Edie Falco says she stays healthy due to a diet of fruits and vegetables.
The whole Phoenix family is famously opposed to eating animal products, including Joaquin.
Jessica Chastain was raised by a vegan chef mother, who has helped her maintain her vegan diet.
Anne Hathaway went from a vegetarian to a vegan diet to slim down for her Catwoman role and decided to stick with it.
He was known for adoring McDonald's during his presidency, but Bill Clinton is now a vegan at the urging of daughter Chelsea.
Tia Mowry became passionate about a vegan lifestyle after a plant-based diet helped her endometriosis.
Jenna Dewan-Tatum has explained that her vegan diet is at odds with husband Channing Tatum's love of meat!
Kristen Bell's home garden helps her maintain her vegan diet.
Tobey Maguire has been a vegetarian for over twenty years, keeping his diet even while bulking up to play Spiderman.
Woody Harrelson doesn't eat any animal products, sugar, or flour, and sticks to raw foods. That's dedication!
After publicizing environmental issues for years, it made total sense for former Vice President Al Gore to go vegan, too.
Natalie Portman has only given her vegan diet a break once (to vegetarianism!), which was during her pregnancy.
Ellen Degeneres and wife Portia de Rossi maintain a vegan diet together.
What keeps Betty White kicking into her 90s? A vegan diet!