Sharon Osbourne, 70, looked unrecognisable during an appearance on Piers Morgan's Uncensored show this week, with the TV personality sitting alongside her husband Ozzy, 74, and their children Kelly, 38, and Jack, 37, for the interview.
During their one-hour appearance, Sharon, who admitted to using Ozempic, the controversial 'weight-loss' drug that is intended to help those with type 2 diabetes, to lose 14kg, admitted she hadn't planned on losing so much weight.
"It’s just time to stop, I didn’t actually want to go this thin but it just happened," she explained, adding, "I'll probably put it all on again soon."
Social media users were shocked by Sharon's new look, with one user simply writing, "Sharon's face!"
"Sharon has lost LOTS of weight," another added.
"Sharon should stop messing with her face," a third said.
"Sharon has paid to make herself look like a wax work at Madame Tussauds," someone else wrote.
The comments continued on Sharon's Instagram account, with one baffled user writing, "This doesn’t look like Sharon? She has changed so much!"
"That's not Sharon Osbourne surely..." another said.
Sharon has previously opened up about her weight loss, telling E! News, "In my life, the heaviest I was 230 pounds [104kg] and I’m now under a hundred. And I want to maintain at about 105 [47kg] because I’m too skinny. But I’m trying to have a healthy balance."
Speaking about the controversial drug on The Talk earlier this year, Sharon shared her experience.
"I took it for four months, and I lost 30 pounds, but like everything, there’s always no quick recipe," she said. "I was very sick for a couple of months. The first couple of months, I just felt nauseous. Every day, I felt nauseous, my stomach was upset, whatever.
"But listen, I took it for four months, I lost 30 pounds. I’ve just shoved two chips in my mouth, while we had the break, and I eat normally now, and I haven’t put on a pound. Nothing."
Sharon has also admitted to having several cosmetic procedures but claims to be done with them after undergoing her fifth facelift in October 2021, which she says turned out "horrendous".
"I'm telling you, it was horrendous. I'm like, 'You've got to be f***ing joking', one eye was different," she told The Sunday Times. "I looked like a f****ing Cyclops. I'm like, 'All I need is a hunchback'."
Speaking with The Sun, Sharon said earlier this year, "That one put me off and it frightens me."
"I really f***ing pushed it with the last facelift and I am now like, no more. Time is against me, I cannot have another facelift."
Never miss a thing. Sign up to Yahoo Lifestyle’s daily newsletter.
Or if you have a story idea, email us at email@example.com.