The star, who recently revealed her 'eco-resolution' is to 'eat everything plant-based', described the partnership as 'amazing' to her 162 million Instagram followers.
'This is amazing'
"I woke up this morning to a delivery from Kentucky Fried Chicken..." the star said, in a series of Instagram stories.
"They are introducing new Beyond Meat chicken, so they now will be having meatless chicken.
"I always eat vegan when I'm home. I went out and had KFC recently and it was amazing, but I don't really eat meat all the time. So this is amazing that they are partnering with Beyond Meat to have meatless chicken."
On February 3, KFC launched a three-week trial of its vegan fried chicken in almost 100 of its US outlets - following a one-day trial in a single Atlanta store last year - which saw the nuggets sell out in hours.
If successful, the chain has said it will roll out the meat-free chicken, which is made from soy, to all of its 4,000 US restaurants.
In the UK, KFC's vegan burger has caused mixed responses amongst vegans, with some calling for a total boycott of the chain due to animal cruelty.
"KFC murder millions of chickens every year. Just because they now have a vegan option, it doesn't make the chain suddenly cruelty-free. If you buy the vegan burger, you are still paying to hurt chickens," one social media user said.
"You're still putting money into the coffers of company that makes its primary source of money off of the slaughter of a specific animal...this is just a marketing ploy," another added.