In the bizarre lawsuit, Karo claims that when Mila was a child in Ukraine, Mila stole her pet chicken named Doggie. She's seeking $5,000 in a small claims court to cover therapy sessions she says she needed again after seeing Mila in-person when she moved to Los Angeles.
Ashton and Mila have since responded in a very animated video posted on the app Meerkat on Wednesday.
"It's shocking to me that news organizations, real journalists out there that have fact-checked this story, didn't pick up on the fact that this girl was one-month old and having a conversation with you from Ukraine," Ashton says sarcastically. "Not only did she have a conversation at one-month old -- in Ukraine -- was speaking in English! This is the smartest girl I've ever heard of!"
Mila's clearly not giving the lawsuit any merit.
"I was devastated," Mila deadpans, pointing out that she was never physically served with papers. "I was weeping. I was dumbfounded. I was like, 'Which chicken did I steal?,' because I was obviously in the village when I stole these chickens."
The former That '70s Show actress also pokes fun at Karo's equally bizarre music video for her song "Give Me Green Card."
"The girl has a music video coming out the same time she's suing you for $5,000!" Ashton comments.
"I would like to launch a countersuit $5,000 lawsuit for making me watch your music video, shamelessly," Mila jokes. "My body hurts. My eyes hurt, they're burning -- that requires money."
But Ashton couldn't close out the video without getting in one last jab.
"No green card for you," he says.
Watch Mila's adorable reaction to Ashton's sweet love note to her
on the Jupiter Ascending
red carpet in the video below.