Kenan & Kel reunite for 'Good Burger' fun with Jimmy Fallon on 'Tonight'

/ Source: TODAY

Kenan Thompson and Kel Mitchell spent much of the '90s side-by-side, bringing huge laughs to tykes, tweens and teens on their Nickelodeon shows and even on the big screen.

And on Wednesday night, they brought the laughs back — and one of their most beloved sketches — to their now-adult fans who were tuned in to "The Tonight Show."

"Welcome to Good Burger, home of the Good Burger. Can I take your order?" Kel said, slipping right back in to his laid-back "All That"/"Good Burger" character Ed.

This time Ed was working alongside a similarly "chilly" cashier — Jimmy Fallon.

THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0335 -- Pictured: (l-r) Kenan Thompson and Kel Mitchell during the "Good Burger" skit on September 23, 2015 -- (Photo by: Douglas Gorenstein/NBC)Douglas Gorenstein / NBC

But the magic happened when "Lester Oaks, construction worker," aka Kenan, walked in for "a double Good Burger, Frenchy fries" and one confusing shake.

Check out the fun in the skit above, and then watch what happened behind-the-scenes below.

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