Watch Zack Morris’ Appearance on Late Night with Jimmy Fallon

Last night, Mark-Paul Gosselaar became expediently cooler after his TV hall of fame-worthy appearance on “Late Night With Jimmy Fallon”. Gosselaar appeared as his “Saved By The Bell” character Zack Morris and even busted out Zack’s “hit” from the show, “Friends Forever”, which he “performed” with The Roots.

Gosselaar, who was appearing on the show to promote the season 2 premiere of his new series, “Raising The Bar”, walked out onto Jimmy’s stage dressed as Zack in a preppy blond wig, white …