Ariana has been a vegan since 2013, and told 'The Mirror' that part of her reasoning was: "I love animals more than I love most people, not kidding.”
Celebrity vegan: Alicia Silverstone
Silverstone switched to veganism at 21, three years after starring in 'Clueless.' She now has a vegan cookbook called 'The Kind Diet.'
Celebrity vegan: Bellamy Young
Thursday night’s on-screen First Lady went vegan in college, after her cafeteria food made her think of her mom’s puppy.
Celebrity vegan: Mayim Bialik
The 'Big Bang Theory' star also has her own vegan cookbook, 'Mayim’s Vegan Table.'
Celebrity vegan: Ellen Page
Fun fact: In 2014, the 'Juno' star was voted PETA’s Sexiest Vegan Celebrity.
Celebrity vegan: Jessica Chastain
The actress was a vegetarian for 15 years before going vegan in 2003.
Celebrity vegan: Kate Mara
The actress went vegan over five years ago, and says she’s never felt better.
Celebrity vegan: Rooney Mara
Kate’s sis Rooney is also vegan, admitting that she basically only eats fruits and vegetables.
Celebrity vegan: Miley Cyrus
If you follow Miley on Instagram, you’ll know she loves nothing more than her (many) pets, including a fish and a pig. In a recent interview with Jimmy Fallon, she said she went vegan because her pets taught her how intelligent these animals are.
Celebrity vegan: Liam Hemsworth
Miley’s now on-again fiancé actually doesn’t credit her with influencing his decision to turn vegan in 2015. He was apparently inspired by his 'Hunger Games' co-star, Woody Harrelson.
Celebrity vegan: Woody Harrelson
It’s no wonder Liam was inspired by Harrelson – the actor has been vegan for over 30 years!
Celebrity vegan: Pamela Anderson
The vegan Canuck once posed half-naked for a PETA campaign.
Celebrity vegan: Peter Dinklage
The 'Game of Thrones' star’s character may indulge in all the meat and cheese (and wine!) he wants, but in real life, Peter Dinklage has been a vegetarian since childhood. As a vegan now, he has even partnered with PETA for their Face Your Food campaign.
Celebrity vegan: Sia
Sia went vegan in 2014, and has partnered with PETA in the past on eliminating animal homelessness and overpopulation.
Celebrity vegan: Ellen DeGeneres
Everyone’s favourite talk show host apparently went vegan after watching the documentary 'Earthlings,' which exposes animal suffering in labs and farms.
Celebrity vegan: Stevie Wonder
After making the switch in 2015, Stevie Wonder appeared on James Corden’s Carpool Karaoke, and sang an impromptu song: “Go vegan, go vegan, you’ve got to go vegan.” Although he said he likes not eating meat, he told the talk show host that he does miss chicken.
Celebrity vegan: Jhene Aiko
Singer-songwriter Jhene Aiko was recently named one of PETA's sexiest vegan celebrities. Who knows... maybe she can convince her bae Big Sean to join her.