By ETonline Staff
3:16 AM PDT, November 1, 2016
Happy Halloween! Check out the funniest, spookiest, and most creative costumes in Hollywood.
Gwen Stefani

Mac Miller and Ariana Grande

Russell Wilson and Ciara

Lindsay Lohan

DNCE

Max Greenfield, Hannah Simone, Jake Johnson, Zooey Deschanel, and Lamorne Morris

Neil Patrick Harris and David Burtka

Demi Lovato

Scott Disick and Kourtney Kardashian

Who says Halloween has to end on Oct. 31? The mom of three shared this Instagram pic with her whole family -- including her ex and their three kids, Mason, Penelope, and Reign -- dressed up as superheroes on Nov. 1, along with the adorable caption, "I know it's now November, but..."
Mariska Hargitay and Debra Messing

Steven Tyler

The Aerosmith frontman's holiday was downright cinematic! Tyler dressed up as Rhett Butler from Gone With the Wind when he attended Universal Studios Florida's Halloween Horror Nights, where he posed in the Vamp '55 scarezone, a homecoming parade complete with vampire greasers, football players and homecoming queens.
Sarah Michelle Gellar

Brittany Snow

Mindy Kaling

Heidi Klum

Channing Tatum and Jenna Dewan Tatum

Kris Jenner

Wendy Williams

Kourtney Kardashian

The Keeping Up With the Kardashians star and her three children -- Penelope, Reign and Mason -- dressed up as the Power Rangers. "Happy Halloween!! May the power be with you," Kourtney cleverly captioned her Halloween family photo.
Behati Prinsloo and Adam Levine

Mariah Carey

Blac Chyna and Rob Kardashian

Kelly Clarkson and Brandon Blackstock

Amber Rose and Val Chmerkovskiy

Khloe Kardashian and Tristan Thompson

The reality star and her boyfriend had fun celebrating Halloween on Oct. 30, dressing up together in Marvel Comics-inspired get-ups. Kardashian made for an amazing Storm -- complete with white hair and glowing eyes-- while Thompson committed to a full-body Black Panther costume.
Rachel Dratch

Beyonce, Blue Ivy and Jay Z

Kylie Jenner

The 19-year-old reality star channeled "Dirrty"-era Christina Aguilera for Halloween on Oct. 30, and nailed the costume, rocking the whole signature look from Xtina's 2002 video, including the striped bikini, bleached blonde-and-black hair, and even Aguilera's infamous cut-out leather chaps.
Jenni 'JWoww' Farley

Taylor Swift

Justin Timberlake and Jessica Biel

Leona Lewis

Blue Ivy, Beyonce and Tina Knowles-Lawson

Jay Z

Scott Disick
Megan Hilty, Viola and Brian Gallagher

Jessica Alba

"Good Morning America"

Emily Ratajkowski

Emma Roberts

Shonda Rhimes

Jerry O'Connell and Kelly Ripa

Kelly Ripa

Matthew Morrison and Renee Puente

Orlando Bloom and Katy Perry

Heidi Klum and Ellen DeGeneres

Bette Midler

Paris Hilton

Mindy Kaling

Floyd Mayweather

Patrick Schwarzenegger

Demi Lovato and Nick Jonas

Alessandra Ambrosio

Hilary Duff and Jason Walsh

Ariel Winter

Kate Hudson

Elle Evans and Matt Bellamy

Kaia and Cindy Crawford

Charlotte McKinney

Nicole Richie

Zach Braff

Harry Hamlin and Lisa Rinna

Seth MacFarlane

Julia Carey and James Corden

Ryan Seacrest

Molly Sims and Scott Stuber

Leonardo DiCaprio

Ryan Lochte

Jenna Dewan Tatum

Andy Garcia

Paris Hilton

Joanna Krupa

Bette Midler and Kathy Griffin

Marc Jacobs

Sheryl Underwood

Julie Chen

Sharon Osbourne

Sara Gilbert

Shakira

Justin Mikita and Jesse Tyler Ferguson

Ashley Tisdale, Shenae Grimes-Beech and Vanessa Hudgens

Dorothy Wang and E.J. Johnson

Tara Reid

Eva Marcille

Sharna Burgess and James Hinchcliffe

DJ Pauly D and Aubrey O'Day

Monique Coleman

Lauren Conrad

Lauren Miller Rogen and Seth Rogen

Scott Eastwood

Jemima Khan
