Halloween 2016: Amazing Celebrity Costumes

<p>The mom of three broke out a Disney witch-inspired costume for a bash at her place with her friends and all of their kids. "Evil" is how Kardashian described it. (Photo: <a rel="nofollow" href="https://www.instagram.com/p/BL_6fAqFMPi/?taken-by=kourtneykardash&hl=en">Instagram)</a> </p>

Kourtney Kardashian – Evil

<p>The diva was red hot in a sexy devil costume at <a rel="nofollow" href=" https://www.yahoo.com/celebrity/mariah-carey-dresses-sexy-devil-210000209.html ">her annual Halloween party,</a> but she didn’t change up her look too much. As always, Carey had plenty of cleavage on display. (Photo: FilmMagic/FilmMagic) </p>

Mariah Carey – Sexy Devil

<p>Talk about friendly exes! Carey and ex-husband Nick Cannon — dressed as Luigi from Super Mario Brothers — spent the night with their cute kids, Monroe and Moroccan. (Photo: FilmMagic/FilmMagic) </p>

Mariah Carey and ex-husband Nick Cannon

<p>The cowboy ensemble the actor sported at the Hilarity for Charity bash was familiar to movie lovers, since Scott's dad Clint Eastwood wore essentially the same thing while starring in classic westerns, such as <i>For a Few Dollars More</i> and <i>The Good, the Bad and the Ugly</i>, in the '60s. (Photo: Greg Doherty/Getty Images) </p>

Scott Eastwood – Cowboy

<p>The trio of actresses got all dolled up days before Halloween to toast Grimes's birthday. "A blonde, a brunette, and a gypsy walk into a bar … #happybirthdayshenae," Tisdale joked in the caption. Think the birthday girl was supposed to be Morticia Addams? (Photo: <a rel="nofollow" href="https://www.instagram.com/p/BL7XkCagQBp/?hl=en">Instagram)</a> </p>

Ashley Tisdale, Shenae Grimes-Beech, and Vanessa Hudgens – A blonde, a brunette, and a gypsy walk into a bar

<p>At <i>Maxim</i>'s Halloween party, Tran almost ran into ex Chris Brown while wearing a barely-there ensemble inspired by Pocahontas. Fortunately, the two reportedly did not cross paths at the party with thousands of guests. (Photo: Paul Archuleta/FilmMagic) </p>

Karrueche Tran – Sexy

<p>The actor and his wife, Lauren Miller, made for an adorable Mario and Luigi — better known as the Super Mario Brothers — at <a rel="nofollow" href=" https://www.yahoo.com/celebrity/celebs-get-into-the-halloween-spirit-to-raise-funds-for-seth-rogens-hilarity-for-charity-183548618.html">a Halloween-themed event</a> to raise money for their Hilarity for Charity organization. (Photo: JB Lacroix/WireImage) </p>

Seth Rogen and wife Lauren Miller – Super Mario Brothers

<p>Jennifer Lopez was a no-show, but her ex-boyfriend was ready to party at the <i>Maxim</i> fiesta in a mariachi costume. (Photo: Paul Archuleta/FilmMagic) </p>

Casper Smart – Jeniffer Lopez’s ex

<p>The designer and her friends went as pastel circus performers — otherwise known as not-so-creepy clowns — in getups sweet enough for her latest clothing collection. (Photo: <a rel="nofollow" href=" https://www.instagram.com/p/BLwCCsEjS5c/?taken-by=laurenconrad_com">Instagram)</a> </p>

Lauren Conrad and friends

<p>The couple brought their reality romance and their costumes — he was a dragon and she was a unicorn — to the <i>Maxim</i> fete. “Costumes made by me,” O'Day revealed on Instagram. (Photo: <a rel="nofollow" href=" https://www.instagram.com/p/BL6xzEVhyjO/?taken-by=aubreyoday&hl=en ">Instagram)</a> </p>

DJ Pauly D and Aubrey O’Day

<p>Can you guess what the <i>Sharknado</i> actress is supposed to be in what has to be one of <a rel="nofollow" href=" https://www.yahoo.com/celebrity/tara-reid-wears-super-skimpy-191400890.html">the tiniest costumes ever?</a> We couldn't either, but thankfully, Reid explained on social media that she dressed as a Greek goddess. (Photo: Paul Archuleta/FilmMagic) </p>

Tara Reid – Sexiest Devil