The truth is, when we were young, we couldn't wait to get older. The same goes for celebrities - some of the hottest artists today are barely legal, but manage to fool us all with a sense of style and maturity way beyond their years. After a certain age though, we only wish the clock could stop ticking. Still, there are those who manage to defy the aging process - at least in photographs.
Are you one of those people who are great at guessing people's ages? Try our quiz here. The answers are at the very end.