It's time to look back at some of the best throwback celebrity costumes from Instagram. Some of these are snaps from Halloweens past [1], but others are fun flashbacks that celebrities have recently shared [2]! Keep scrolling to see photos from the last few years, childhood moments, and everything in between.
Kourtney Kardashian
Kourtney and Kim Kardashian
Amy Schumer
Taylor Swift
Paris Hilton
Kim Kardashian
Rachel Zoe and Rodger Berman
Laverne Cox
Naya Rivera
Kelly Osbourne
Paris Hilton
Ansel Elgort
Lance Bass
Kelly Ripa
Alessandra Ambrosio
Gisele Bündchen and Tom Brady
Kaley Cuoco
Diddy
Jimmy Fallon
Alessandra Ambrosio
Amber Rose
Beyoncé Knowles
Jennifer Lopez
Kylie Jenner and Tyga
Snooki and JWoww
Kate Hudson
AnnaLynne McCord and Erik Rudy
Ashley Benson
Jessica Alba and Haven Warren
Brad Goreski
Adrian Grenier
Padma Lakshmi and Susan Sarandon
Sarah Hyland
Lea Michele
Miley Cyrus
Julianne Hough was Felicity Shagwell and Brooks Laich was Austin Powers in 2014.
Lindsay Lohan
Lucy Hale
Kate Hudson
Lindsay Lohan
Ellen DeGeneres
Alyssa Milano
Naya Rivera and Ryan Dorsey
Alyssa Milano
Miley Cyrus
Adam Shankman
Chris Colfer
Ed Sheeran
Michael Turchin and Lance Bass
Fergie and Josh Duhamel
Samantha Ronson
Hailee Steinfeld
Adam Lambert and Colton Haynes
Paris Hilton
CaCee Cobb and Donald Faison
Christian Siriano
Bill and Giuliana Rancic
Lo Bosworth
Kim Kardashian
Honor Warren
Lori Loughlin
Brittny Gastineau
Demi Lovato and Wilmer Valderrama
Beyoncé
Chord Overstreet
Jared Leto
Kim Kardashian
Kendall Jenner and Cara Delevingne
Michelle Trachtenberg
Paris Hilton
Chloë Grace Moretz
Kelly Osbourne
Miley Cyrus
Lo Bosworth
Kim Kardashian
Nicole Richie