"I've never had anything done on my face—I've never had dermabrasion or peels or injections of any kind, nothing."

When asked what she thought about people who do undergo plastic surgery, she explained to Allure magazine, "It's like the uniform of a generation and it's not necessarily beautiful. It's not wrinkled-looking, but it's not beautiful."

Another beautiful star who's outspoken against going against Mother Nature is Olivia Wilde.

The actress told Glamour magazine, "I am so saddened and grossed out by young women who look like creepy, old aliens because of their new Barbie noses and lips."

But it looks like supermodel Cindy Crawford has a more forgiving view on the matter.

The 44-year-old explained to Ladies' Home Journal  that she supports antiaging procedures up until a certain point.

"I've tried Botox, but it scares me," Crawford confessed. "Plastic surgery is really scary, but as long as you don't use these things to change your face, I think it's OK."