Will Smith Turns 46 Today — 14 Stars You Won’t Believe Are Over 40 (PHOTOS)

Some stars have totally found the fountain of youth, including Will Smith, who turns 46 today! It seems like only yesterday that young Master William was starring in Fresh Prince, but he's not the only one defying time itself. (In fact, one of these stars is an unbelievable 50 years old!)

These stars have already hit the big four-oh, but you wouldn't be able to tell from the way they look! It's not a plastic surgery thing — if it were, this list would be a lot bigger ;— although if any of these stars had intervention to look this hot, we'd love the name of their doctor.

Are they really healthy, or just really, really lucky? Is there some sweet moisturizer they all use? Maybe they just drink a lot of water!

Click through the gallery for 10 more stars so ageless, they might just be vampires. ;