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American actress Gillian Jacobs was in her mid-20s when she first started playing Britta -- the smart and progressive hipster with a group of friends at Greendale Community College -- in the sitcom "Community" back in 2009.

Britta was part of an ensemble cast including Joel McHale as the former defense attorney going back to school and leader of the friend, Jeff, Donald Glover as the sensitive and goofy friend who cares deeply for his peers, Troy, and Alison Brie as the optimist gal -- super dedicated to her school, Annie.

Khloe Kardashian turned her Calabasas home into a Halloween pumpkin palace for the annual cousins' pumpkin party -- totally decking out her digs! Khloe brought the spooky vibes and flooded her home with big ole' balloons, goodies n' treats and pumpkins out the wazoo!!!

Of course, Kris Jenner (aka "Lovey") was in attendance -- seen showing off her sexy Snow White costume ... and Khloe's besties, Natalie Halcro and Olivia Pierson, joined in on the festivities and rocked some cat ears.

Khloe snapped a sweet selfie with her kiddos, True and Tatum, all sporting cozy skeleton onesies.

The KarJenners are taking over the film world ... not only is Kim flexing her acting chops these days -- they're also lighting up the red carpet at the Academy Museum Gala!

Kim, Kylie Jenner and Kendall Jenner hit the red carpet at the glitzy affair -- nicknamed the "Met Gala of the West" -- in their updated take on Hollywood glam ... stylish dresses showing just a little more skin than Ava Gardner might've.

Check out the ensembles ... Kim's putting on a leggy display in an all-white dress with no coverage of her legs -- while Kylie went with a flesh-colored top and Kendall wore a black cocktail dress.

Before this sweet boy in his proper baby outfit turned into a socialite and real estate agent, he was just roaming the halls of the Waldorf Astoria, attending elite schools and growing up with two older sisters and one younger bro.

You may hear or read more about his two famous sisters, as he's more low-key, but he still cashes in on his real estate earnings. He has 3 children -- welcoming his 3rd earlier this year with wifey, Tessa.

Need another clue? His last name is a famous Hotel chain ...

Kim Kardashian's been serving up looks ever since she and her famous fam broke onto the scene circa the mid-2000s, but it's no secret Kim takes the (bday) cake when it comes to Halloween 'fits!

And since today marks this billionaire's 44th birthday, we've assembled her most iconic and hottest Halloween looks throughout the years ... Like this throwback from 2008; check out a (then) 28-year-old Kim K. as a voluptuous Wonder Woman!

Flashback to 2012 when Kim took Miami by storm and put her Cat Woman physique on blast for her Halloween party at Fontainebleau's LIV nightclub.

Grab your popcorn, because inside this popular pumpkin head is a Houston, Texas gal known to put on one hell of a show! She recently took the mic as Britney Spears, so 'you better work' and come correct to unveil this scrambled celeb!

You can almost guarantee she's having a Hot Girl Fall -- recently going knuckle deep in some popcorn -- while slaying a jack-o-lantern on top (her Halloween go-to trick). Your ratchet may help loosen up this rappin' pumpkin.

Her songs may be savage, but that doesn't stop them from going viral ...

Anna Kendrick's looks over the years are picture-perfect!

Here is a 27-year-old version of the Hollywood actress showin' off her loose curls and pearly whites at the premiere of "Pitch Perfect" back in 2012 (left). This was a few years after her Academy Award nomination for her 2009 "Up In The Air" performance.

And, 12 years later, the stunning star recently took her wavy hair to the "Woman of the Hour" premiere in Hollywood (right) -- which hit Netflix earlier this weekend. In addition to starring in the film, this is Kendrick's directorial film debut.

You already know her "Pitch" is on the money, so the question here is:

Cue the Halloween puns, 'cuz the stars are having a skele-ton of fun and letting the ghoul times roll this Spooktober! And, you know what they say, "If you've got it, flaunt haunt it!"

Teamwork was def makin' the scream work for Gabrielle Union and Dwyane Wade's Halloween decor, Sydney Sweeney hit the countertop to frost some festive goodies, and guess which A-list rapper stuck to her annual pumpkin head tradition?!

Just in time for spooky season, Lance Bass stayed in sync with dropping his Halloween children's book, "Trick or Treat on Scary Street".

And, sink your teeth into Maude Apatow looking fang-tastic while she snapped a spine-chilling selfie with Halloween icon, Jack Skellington.

Her songs are a total bop, and now Jennie Kim's in a crop top! Do you think you've got what it takes to score the minor switch-ups in these photos? Hit the lights and watch this shining star own the stage!

Per Jennie's newest "Mantra", the K-Pop singer "just touched down in L.A." and made her US television performance debut on Jimmy Kimmel. Just take a look at her show-stoppin' stage 'fit ... she ate!

"Pretty girls don't do drama", but go on and find the dramatic changes ...

Cody Simpson swept his girlfriend, Emma McKeon, off to Italy for a lil' romantic vacay, and the professional swimmin' duo shared a series of sweet snaps on the 'gram ... Check out our gallery and see all the scenic shots!

Zac Efron is celebrating birthday #37 today and to shout out this shredded stud we're throwin' his hottest shots (ever) right at your fingertips. Check out our gallery and see all his smokin' snaps!

It's the season of the witch, and these sinister stars are riding in wickedly hot! Hold on tight and dust off your brooms ... There's a bunch of bad witches stirring things up in their cauldrons!

Scary celebs like Julianne Hough took a lacey approach with her witch costume ... Becca Tilley and Hayley Kiyoko are "Defying Gravity" dressed as Elphaba and Glinda from "Wicked," and you can count on Scheana Shay to surve up some powerful trouble!

Halloween fanatic Vanessa Hudgens kept it classic in a head-to-toe witch 'fit and was fiending for the green, flaunting her freaky flesh in a plunging witch dress.

And 'RHOBH' housewife Adrienne Maloof lurked in her haunted Beverly Hills mansion ready to get after it with her total boss witch vibes!

American actress Samantha Mathis was in her mid-20s when she played Amy March -- the youngest March sister known for manipulative ways and artistic beauty -- in the family film "Little Women" back in 1994.

Mathis was part of an ensemble cast including Kirsten Dunst who played the young version of Amy ... Winona Ryder as the straightforward tomboy who loves writing, Jo March and Christian Bale as the wealthy and charming neighbor, Theodor "Laurie" Laurence.

Other cast-worthy mentions include Susan Sarandon as Marmee March and Claire Danes as Beth March.