Catherine Zeta Jones has long been known for her youthful looks.
But after attending the Best FIFA Football Awards in London, fans are concerned she's undergone cosmetic surgery.
The 48-year-old Oscar-winning actress stepped out looking dramatically different, with tight and taut raised eyebrows.
The mother-of-two has previously denied going under the knife, but said she wouldn't rule it out in future.
"But I'm not anti-plastic surgery at all. Contrary to public opinion, I have not been under the knife ... yet, is what I say! If I feel like it, I'm going to go ahead and do it," she told Good Housekeeping.
"If (surgery) makes you feel better, who am I to tell someone that it's wrong."
Catherine credits healthy eating and exercise for her young appearance.