Hilary Duff may be only eighteen, but she's already thinking about the day when her dewy looks will fade. The hollow-cheeked, shiny-toothed starlet admits she would consider going under the knife if she felt it would boost her self-image.

"I don't have anything against people who have surgery," she tells the London Sun. "If I get older and feel uncomfortable about something then maybe [I will have it]. I never say never."

Duff then taps into her vast experience with the harsh and unrelenting march of Father Time by explaining, "Some things are hard to deal with for a woman as you grow older. I think everyone should be able to feel good about themselves."

But she cautions that the changes should be subtle.

"I don't like it when it's really obvious and gets pointed out," says Hilary, whose made-over smile and super slimmed-down figure have sparked much discussion. "Some people go overboard."

Which appears to be a problem that plagued Jessica Simpson, who has finally admitted the obvious: She's no stranger to the latest lip-plumping techniques.

"I had that Restylane stuff," she tells Glamour (via Us Weekly) of her decision last fall to get the cosmetic filler, which left her kisser more altered than sister Ashlee's nose. "It looked fake to me. I didn't like that."

Fortunately, "it went away in, like, four months," says the suddenly ubiquitous bombshell. "My lips are back to what they were. Thank God!"

That's good news for John Mayer, who's supposedly been getting up close and personal in recent days with Jessica's now less-rubbery pucker.

Meanwhile, in related nip-tuck news, Blythe Danner says advances in boob tube technology have caused her to rethink the concept of growing old gracefully.

"I am 63 -- I don't care [about getting older]," the Emmy-winning mom of Gwyneth Paltrow tells Dark Horizons. "The thing is, I wasn't terribly conscious of it until we did 'Huff' and they used this dreadful high definition, which makes anybody over fifty look as if they are eighty."

According to Danner, she became "very self-conscious" about how she looked in HDTV.

"Yes -- we all get a little help, a little bit of this or that ... not tremendous amounts, and I hate the idea of doing real invasive stuff, and I am not trying to look forty, because there were some shots on 'Huff' I was just appalled," she says. "I don't think I am terribly narcissistic, but you don't want to look your worst."

And in final bit of image makeover news (this one non-surgical), Rosie O'Donnell says her trimmed tresses will go scissor-free when she parks her keister on "The View."

"I know people were like, 'It's all right that she's gay, but she doesn't have to look so gay,'" she tells Glamour (via the New York Post). "Trust me -- I'm never cutting my hair again. On 'The View,' it will be long and luxurious, not scary."