1. Jennifer Aniston
Jennifer Aniston is pretty much the poster child of perpetually staying hot. She hit it big as Rachel on the TV show Friends (which started airing nearly 20 years ago, people, wrap your minds around that) and inspired a generation of women to get a haircut that looks good on such a small percentage of people it's not even funny. I think we all knew that she was going to age well; she was gorgeous in her 20s, gorgeous in her 30s, and has continued to be gorgeous in her 40s. But I don't think anyone was prepared for exactly how hot she was going to be now that she's a 40-something. She doesn't look good "for her age" -- she is smoking, period. If you happened to catch her performance in We're the Millers (and trust me, I wouldn't blame you if you hadn't), I mean...come on. She is a 44 year old woman doing a stripper routine and rocking a body that any girl in their 20s would kill to have. It isn't just her face that has aged well, she has put a lot of work into that body of hers, and it shows. Good for you, Jen!