Forget 10, here's the 20-Year Challenge
See how much (or little) the stars have aged
© Getty Images
Actors, musicians, and celebrities of all sorts are getting in on the 10-Year Challenge, posting photos that compare how they look an entire decade later. But a decade can go by very quickly, so why not make it two?
Check out this gallery to see how much, or how scarily little, has changed.
FOOD Unusual uses
TRAVEL Natural disasters
MUSIC The backstreet boys