Zack Morris appears on "Late Night" with Jimmy Fallon!

I'm gonna totally geek out and probably come across as a mega loser, but Saved By the Bell was a staple for my generation. So imagine how effing jacked up I was to see Mark-Paul Gosselaar appear on Late Night with Jimmy Fallon last night as Zack Morris! He caught everyone up on how he's been (in character, of course), answered a call from Jessie Spano (played by Elizabet Berkley), and actually performed the Zack Attack's hit song Friends Forever! Check out the video below, and if you were born in the 80s, enjoy re-living your childhood for a few minutes.

Screech throwing his old "classmates" under the bus

Ya know, for someone who seemed like he'd be a kick ass geek to hang out with, Dustin Diamond (who played Screech on Saved by the Bell) turned out to be a real douchebag. Everyone knows about the drama he caused on 2 seasons of Celebrity Fit Club, but now he's gonna stick it to the people that help put him on the map.

Dustin signed a deal to write a tell-all book about Saved by the Bell, including all of the behind the scenes "sexual escapades between cast members, drug use and hardcore partying."

Soooo basically, the cast probably didn't want to party with him and none of the girls wanted to hook up with him, so he's bitter and trying to make them sound bad. Frankly, I think it'd be cool to find out Kelly Kapowski hooked up with Mr. Belding. A little creepy, but cool.