There are certainly some idols that I wish would BEEP my BEEP, but if that's what you're looking for, there are other industries that require much less money and effort than it would for an idol.
depends on how you look. Smoke, drink, do shitty jobs, live in a shitty environment, and you'll look like a wrinkly life-beaten geezer at 35. On the other hand, exercise, eat well, sleep 8 hours and not late, and you can even be mistaken for a 20-year old.