Seth Rogen as Mario
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Joseph Gordon-Levitt and wife Tasha McCauley won’t let a little blood stop their performance.
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Scott Eastwood dresses up like his father, Clint.
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Tara Reid wears a barely-there costume.
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Mariah Carey gets in touch with her devilish side.
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Casper Smart gets musical.
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DJ Pauly D and singer Aubrey O’Day dress as a dragon and fairy.
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Charli XCX is feeling devilish.
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Shaun White goes in drag as the lady martian from “Mars Attacks.”
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Lauren Conrad and friends are some stylish clowns.
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Shakira pulls off some tricks as a magician.
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Chrissy Teigen and John Legend’s daughter, Luna, steals the show as a miniature hot dog …
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… also as a banana …
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… and Minnie Mouse …
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…. and as a peacock, too.
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Al Roker as Steve Urkel
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Alessandra Ambrosio as Jessica Rabbit
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Amy Schumer and boyfriend Ben Hanisch as the kids from “Stranger Things”
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Carson Daly as The Terminator
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Elizabeth Banks with a pal as Uma Thurman in “Pulp Fiction”
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Ellie Goulding as a sailor
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Kelsey Grammer as Sideshow Bob
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Katy Perry as Hillary Clinton with Orlando Bloom as Donald Trump
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Kelly Ripa as Harley Quinn
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Jenna Bush Hager as her grandmother Barbara Bush
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Jenna Dewan Tatum as a unicorn
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Jessica Alba and a friend as the cast of “Absolutely Fabulous”
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Kate Hudson as a saloon girl
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Kathie Lee Gifford and Hoda Kotb as Regis Philbin and Kathie Lee
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Kylie Jenner at her undead dinner party
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Matt Lauer as Jerry Seinfeld in the infamous puffy shirt
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Molly Sims as a psychic
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Nicole Richie and friends as Siegfried and Roy
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Nina Dobrev as the horse from “The Revenant”
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Savannah Guthrie as Demi Moore
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Kylie Jenner as Christina Aguilera
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Demi Lovato and Nick Jonas as Dorothy and the Scarecrow
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Nina Dobrev and a friend as Ryan Lochte
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Candace Cameron Bure as Tinkerbell
Sarah Hyland as a swamp fairy
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Kourtney Kardashian
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Matthew Morrison and his wife, Renee, as Harley Quinn and The Joker
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Beyoncé, her mom Tina and Blue Ivy as Salt-N-Pepa
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Bette Midler as her character from “Hocus Pocus,” Winifred Sanders, and Kathy Griffin as a Snapchat filter
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Marc Jacobs and Charly DeFrancesco as bodybuilders
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Sandra Bernhard as a witch
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Emily Ratajkowski
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Ryan Lochte as the Mad Hatter
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Lindsay Lohan as Harley Quinn
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Rachel Platten as an angel
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Kyle MacLachlan as salad
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Jay Manuel as a pharaoh
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Designers Phillipe Blond and David Blond as Helen and Madeleine from “Death Becomes Her”
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Chanel Iman as a mummy
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Coco and Ice-T
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Danielle Brooks and Jessica Williams as “B.A.P.S”
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Heidi Klum with her fleet of clones
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Remy Ma as Ursula
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Serena Williams, Lewis Hamilton and Gabrielle Union
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Hailey Baldwin as Barbie
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Beyoncé as Barbie
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Bethenny Frankel as a cat
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Paris Hilton as Tinkerbell
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Mario Lopez as a cowboy
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Frankie Grande as an alien
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Kelly Ripa and Jerry O’Connell as Harley Quinn and The Joker
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Paris Hilton as Alice
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Tara Reid as Santa
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Maria Sharapova as Pippi Longstocking
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Michelle Trachtenberg
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Hailee Steinfeld
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Lena Dunham targeting Donald Trump as a “grabbed p—y”
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