Some people really don't age...at least with the help of lots of makeup!

Zack Morris (a.k.a. Mark Paul Gosselaar, but he played himself playing Zack Morris. Amazing.) was on Jimmy Fallon last night! He looks exactly the same as he did in the 80s from afar, but you can tell they used TONS of makeup to make it that way when they have close-ups. All in all, this really made my day.

THIS IS TOTALLY CREEPY...and awesome...on so many levels!

Update June 2011: The video won't play anymore. But take it from me, it was AWESOME.

Update September 2013: The video has been found again!!
http://www.hulu.com/watch/76560

Screenshot credits to hulu