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By Lauren Sullivan

Live from Rockefeller Plaza, it's "Saturday Night Live!"

The morning show team took a late-night turn for Halloween 2014 and dressed up as some of "SNL's" most iconic characters, from the Spartan cheerleaders to Wayne and Garth to the Blues Brothers.

The whole TODAY gang dresses up as famous "SNL" characters.Samantha Okazaki / Today

Willie Geist and Tamron Hall kicked off the Halloween Boo-Nanza by channeling Will Ferrell and Cheri Oteri as the peppy Spartan cheerleaders.

Willie Geist and Tamron Hall as the Spartan cheerleaders.Samantha Okazaki / Today

WATCH: See Willie, Tamron as ‘SNL’ Spartan cheerleaders

Next up: Natalie Morales as Mary Katherine Gallagher. She emerged from behind (Father) Peter Alexander as a "Superstar." 

Natalie Morales as Mary Katherine Gallagher.Samantha Okazaki / Today

In true Molly Shannon form, she told Peter, “Sometimes, when I get nervous, I stick my hands under my armpits and then I smell them like this!”

Today

WATCH: Natalie is armpit-smelling Mary Katherine Gallagher

And then... Kathie Lee and Hoda as Wayne and Garth from Wayne's World. 

Kathie Lee Gifford and Hoda Kotb rock out as Wayne and Garth.Samantha Okazaki / Today

Party on, Kathie Lee! Party on, Hoda! 

9 hilarious bits from KLG, Hoda as 'Wayne's World' hosts

Today

WATCH: Hoda, KLG rock it out as Wayne and Garth

Good lovin’? Al and Lester have a truckload. The duo walked out as The Blues Brothers, Jake and Elwood Blues, before jamming on the plaza.

Al Roker and Lester Holt as The Blues Brothers.Samantha Okazaki / Today

WATCH: Blues Brothers Al Roker, Lester Holt sing ‘Soul Man’

But TODAY saved time for androgyny! Here comes Pat — er, Matt!

"I love Halloween," Lauer said in his nasal Pat voice. "I get to dress up. Last year I was a beautiful beach babe. The year before that I was a macho prince."

Matt Lauer as Pat.Samantha Okazaki / Today

WATCH: Matt is Pat! Anchor dresses as ‘SNL’ character

And last, but definitely not least, came Savannah Guthrie, Jenna Bush Hager and Meredith Vieira, who gave scary a whole new meaning with a re-creation of the "Mom Jeans" digital short. 

“Mom jeans fit mom just the way she likes it. She’ll love the 9-inch zipper and casual front pleats.”

Savannah Guthrie, Jenna Bush Hager and Meredith Vieira in the Mom Jeans digital short.Samantha Okazaki / Today

WATCH: TODAY ladies hit the plaza in their ‘Mom Jeans’

Happy Halloween from TODAY!Samantha Okazaki / Today

Want to get in on the fun? Tweet us your best costumes using #HalloweenTODAY.

The TODAY anchors dressed up like classic "Saturday Night Live" characters to celebrate Halloween.