Susan Boyle looks like Hyacinth from "Keeping Up Appearances" which is to say a matronly British woman in her 60's. She does not look like a 47 year old woman--at least none I know--and I'm 43.

I work out, but otherwise don't do any excessive grooming, and I've never had any kind of plastic surgery. I don't wear makeup. I am not a beautiful woman, but am commonly taken for 10 years younger than I am. It's just that I won the genetic lottery in that respect.

There's no reason to disparage her looks as they are, but OTOH, don't pretend that she looks like a 47-year old woman is supposed to look. Defining that, to me, is just as anti-feminist/sexist as disparaging women for "trying" to look younger than they are. In my case, and I am sure many other women's cases, nobody's "trying".