Most celebrity vegetarians are outspoken about their cruelty-free dietary choices, but not all of them are activists. Check out the biggest vegetarian celebrities of 2013, including PETA's choice for Sexiest Vegetarian Celebrity this year.

People for the Ethical Treatment of Animals (PETA) compiles a list of sexiest vegetarian celebrities every year and in 2013 Kristen Bell has won the top honor.

"I had a hard time disassociating the animals I cuddled with—dogs and cats, for example—from the animals on my plate, and I never really cared for the taste of meat. I always loved my Brussels sprouts!" explained Kristen, who turned vegan this year after being a vegetarian for a few years.

Discover more vegetarian celebrities, in a list compiled by PETA alphabetically uniting the top choices for the sexiest vegetarians this year.

Peta Sexiest Vegetarian 2013 Kristen Bell

Female Vegetarian Celebrities

From outspoken celebrity vegetarians like Pamela Anderson to actresses and singers who don't necessarily get involved publicly in animal rights issues, the vegetarian celebrity list includes:

Aimee Teegarden, Alicia Silverstone, Alyssa Milano, Angela Simmons, Anne Hathaway, Ashley Judd, Carrie Underwood, Chrissie Hynde, Christian Serratos, Christie Brinkley, Daniella Monet, Diane Keaton, Diane Warren, Edie Falco, Eliza Dushku, Ellen DeGeneres, Emily Deschanel, Emmylou Harris, Famke Janssen, Fiona Apple, Jane Velez-Mitchell, Jenna Dewan Tatum, Jessica Chastain, Jessica Paré, Joan Jett, Jorja Fox, Joss Stone, Kellie Pickler, Kristen Bell, Kristen Wiig, Lea Michele, Leona Lewis, Lisa Edelstein, Maggie Q, Mayim Bialik, Michelle Pfeiffer, Natalia Villaveces, Natalie Portman, Olivia Wilde, Pamela Anderson, Patricia De León, Portia de Rossi, Renee Olstead, Robin Quivers, Rooney Mara, Sarah Silverman, Shania Twain, Stella McCartney, Steph Davis, Tia Mowry

Alyssa Milano VegetarianCarrie Underwood Vegetarian
Natalie Portman VegetarianJenna Dewan Vegetarian

See also: Vegan vs Vegetarian: What Is the Difference?

Male Vegetarian Celebrities

Celebrity vegetarians include plenty of actors, singers and even politicians, and the sexiest male vegetarian celebrities in 2013 are:

Alan Cumming, Bill Clinton, Brendan Brazier, Bryan Adams, Carl Lewis, Casey Affleck, Cory Booker, Ed Begley, Jr., Eric Stoltz, Forest Whitaker, Geezer Butler, Georges Laraque, Jack Johnson, Jake Shields, James Cromwell, Jared Leto, Jason Mraz, Jason Schwartzman, Joaquin Phoenix, John Salley, Johnny Galecki, Kevin Eubanks, Kevin Nealon, k-os, Mac Danzig, Marco Antonio Regil, Masta Killa, Mike Tyson, Mike White, Milo Ventimiglia, Moby, Morrissey, Mos Def, Owain Yeoman, Paul McCartney, Peter Dinklage, Phil Collen, Prince, Rich Roll, Richard Linklater, Ricky Williams, Russell Brand, Russell Simmons, Steve-O, Thomas Dekker, Tobey Maguire, Tom Morello, Travis Barker, Woody Harrelson

Mike Tyson VegetarianJason Mraz Vegetarian
Russell Brand VegetarianTobey Maguire  Vegetarian

See also: Vegetarian Paleo Diet: How to 'Eat Like a Caveman' and Be a Vegetarian at the Same Time

Photos: PR Photos, Thinkstock