Halloween 2015: The Best Celebrity Costumes

A photo posted by M O N I C A R O S E (@monicarosestyle) on Nov 1, 2015 at 7:55am PST

A photo posted by Beyoncé (@beyonce) on Nov 1, 2015 at 1:15pm PST

A photo posted by Taylor Swift (@taylorswift) on Oct 31, 2015 at 10:25pm PDT

A photo posted by King Kylie (@kyliejenner) on Oct 31, 2015 at 11:04pm PDT

A photo posted by Kim Kardashian West (@kimkardashian) on Oct 31, 2015 at 10:28pm PDT

A photo posted by Ellen (@theellenshow) on Oct 29, 2015 at 7:24pm PDT

A photo posted by KATY PERRY (@katyperry) on Oct 31, 2015 at 8:21pm PDT

A photo posted by Nicki Minaj (@nickiminaj) on Oct 31, 2015 at 5:41pm PDT

A photo posted by Neil Patrick Harris (@nph) on Oct 31, 2015 at 1:54pm PDT

A photo posted by Tyra Banks (@tyrabanks) on Oct 30, 2015 at 10:55am PDT

A photo posted by Justin Bieber (@justinbieber) on Oct 30, 2015 at 4:19am PDT

A photo posted by Jennifer Lopez (@jlo) on Oct 31, 2015 at 8:22pm PDT

A photo posted by Miley Cyrus (@mileycyrus) on Oct 22, 2015 at 6:21pm PDT

A photo posted by Robert Downey Jr. (@robertdowneyjr) on Oct 23, 2015 at 6:05pm PDT

A photo posted by therock (@therock) on Oct 31, 2015 at 8:37pm PDT

A photo posted by Shay Mitchell (@shaym) on Oct 31, 2015 at 11:14pm PDT

A photo posted by Rita Ora (@ritaora) on Nov 1, 2015 at 7:45am PST

A photo posted by LeBron James (@kingjames) on Nov 1, 2015 at 7:03am PST

A photo posted by Fergie (@fergie) on Oct 31, 2015 at 8:02am PDT

A photo posted by J O E J O N A S (@joejonas) on Oct 31, 2015 at 7:51pm PDT

A photo posted by Jessica Alba (@jessicaalba) on Oct 30, 2015 at 9:59pm PDT

A photo posted by Jeff Dye (@jeffdye) on Oct 25, 2015 at 12:19am PDT

A photo posted by Kourtney Kardashian (@kourtneykardash) on Oct 24, 2015 at 6:03pm PDT

A photo posted by Colton Haynes (@coltonlhaynes) on Oct 24, 2015 at 8:45pm PDT

A photo posted by Ciara (@ciara) on Oct 26, 2015 at 5:00am PDT

.@chrissyteigen wins #flavourtownpic.twitter.com/EXPSlfxFCe

— monika. (@heyitsmonika) October 26, 2015

Nick Jonas dressed up as McDonald's Hamburglar character omg NICHOLAS pic.twitter.com/657DrWLDBp

— Alysse Paris (@alysseparis) October 25, 2015

Nina Dobrev channels Victoria Beckham at Halloween party... https://t.co/Sv424q3iempic.twitter.com/5DOUG6mSrv

— Paparazzi NewYork (@newyorkpapaz) October 26, 2015

A photo posted by Ashley Madekwe (@smashleybell) on Oct 24, 2015 at 10:26pm PDT

A photo posted by Lily Collins (@lilyjcollins) on Oct 24, 2015 at 10:43pm PDT

A photo posted by Miranda (@mirandakerr) on Oct 25, 2015 at 6:47pm PDT

A photo posted by Emily Ratajkowski (@emrata) on Oct 23, 2015 at 1:11pm PDT