Kendall Jenner
Pamela Anderson is that you?! "'don't call me babe' happy halloween! GO VOTE," Kendall captions her social media post. She dresses up as the Barb Wire star for Halloween and her birthday celebration.
Scott Disick, The Weeknd, Kylie Jenner
The Weeknd looks unrecognizable in his Nutty Professor costume. He poses with the Flip It Like Disick star.
Kim Kardashian & Kendall Jenner
Dynamic duo. The birthday girl snaps a photo with Kim. Plus, a source tells E! News Kendall's celebration featured custom cocktails that were Halloween-themed. There was even "a special tequila drink" for Kendall.
Kylie Jenner
"King Cobra," Kylie writes on Instagram, as she gets ready to make a grand entrance at her sister's bash.
Kendall Jenner
Make a wish! A huge Hansen's cake was brought out for Kendall and everyone sang happy birthday, a source shares. "Sliders, chicken skewers, french fries and chocolate chip cookies were brought out."
Justin Bieber & Jaden Smith
The "Intentions" singer sits down with Jaden Smith and a mutual friend at the Saturday night party.
Scott Disick & The Weeknd
Because these lewks are just too good to not share once more.
Kendall Jenner
A sci-fi fantasy! "OMG U WIN Halloween," Kim comments Kendall's Barb Wire-inspired costume on Instagram. In fact, the KKW Beauty founder previously dressed as the '90s icon, so the compliment makes it even more special.
Kendall Jenner
Pre-party selfies! However, during the festive party, Kendall and her guests didn't need to solely rely on taking pics on their phones. An insider reveals the celebration included the famous Kardashian photo booth.
Winnie Harlow
Channeling the iconic Bride of Frankenstein, Winnie wins Kendall's Halloween-themed party with her costume.
Kylie Jenner & Saweetie
Name a more iconic duo... we'll wait.
Kendall Jenner
According to a second insider, Mindy Weiss planned the supermodel's unforgettable bash.